What was life like before technology

JOHANNESBURG, South Africa, 29 March 2018 – It may be hard for many people living in this century to even consider what life was like before technology began to make life easier, more comfortable and more entertaining.

Back in the 1900s, a certain printing plant had a problem. They had to print a colour page four times, each time with a different colour separation. But, because of humidity, the paper would swell slightly and the first ink printed wouldn’t dry quickly enough. This meant smudges and blurred lines. In 1902, a young inventor, Willis Carrier, solved the problem with a series of pipes and air that controlled the humidity. That was the beginning of air conditioning. Back then, theatres usually closed down during summer months. It was only during the 1920s that movie-goers were treated to air conditioned and cooled theatres and in fact, air conditioning was used as a selling point to get customers into theatres.[i]

Mike van Lier, Director of Consumer Electronics, Samsung South Africa, says, “Air conditioning has come a long way since the first prototypes were invented. It’s not just about cooling anymore – modern-day air conditioners can heat, cool and treat the air – removing harmful toxins and creating a healthy environment which positively affects sleep patterns and assists in reducing allergies.”

What about television? It’s not often you walk into a home, office or even retail space without being faced with a screen anymore. And television isn’t quite as modern as you’d think. All the way back in 1843, Scottish inventor Alexander Bain was working on a facsimile machine, which was further developed by English physicist Frederick Bakewell in 1851. An Italian Priest, Giovanni Caselli put the first practical working version into play in 1856.[ii] From there, numerous inventors continued with the development and in 1897, English physicist JJ Thompson began the development trajectory of the Cathode Ray Tube (CRT). There’s a long history of how television was developed into what it has become today.

“Television has come a long way since it was first introduced into living rooms around the world. Samsung’s latest offering is a modular set of microLED screens that you can customise according to how you want to view. Of course, our Quantum Dot LED TVs are a far cry from the black and white bubble sets of yesteryear. Now you have more than a billion shades of colour, which means you can view anything in 100% colour volume,” says van Lier.

The first patent for a successful hand-powered dishwasher was lodged in 1887 by a wealthy socialite, Josephine Garis Cochran, who entertained often and wanted a machine that could clean dishes faster than her servants, without breaking them.[iii] Numerous designs were created and different types of dishwashers invented. By the 1970s, dishwashers were commonplace in homes in developed countries. What was once a new-fangled design only for the wealthy has now become an indispensable item in most homes as well an essential energy- and water-saving device. Dishwashers use less water, and therefore less fuel to heat the water, than hand washing, except for small quantities washed in wash bowls without running water.[iv]

“With technology constantly evolving, dishwashers are becoming exceptionally smart. Samsung integrates the latest innovative technology that makes a huge difference; for example, theZone Booster feature targets hard-to-clean pots and pans with intensive washing at the touch of a button. All you have to do is select the option to wash the right or left zone of the bottom rack with higher water pressure and heat. Or there’s the auto door opening feature that ensures the door opens slightly to let out additional steam when the wash cycle is done, which ensures no streaking on glassware. There’s actually no end to the amount of convenience and efficiency when it comes to technology in our range of dishwashers,” concludes van Lier.

Technology is constantly evolving to address the unique and particular needs of consumers and as life changes, different technological advances will come to the fore. Samsung prides itself on innovative, people-centred technology that intuitively addresses the needs of consumers.


About Samsung Electronics Co., Ltd.

Samsung inspires the world and shapes the future with transformative ideas and technologies. The company is redefining the worlds of TVs, smartphones, wearable devices, tablets, digital appliances, network systems, and memory, system LSI, foundry and LED solutions. For the latest news, please visit the Samsung Newsroom at https://news.samsung.com/za/

For further information, please contact:

Anneke du Toit                                                              Jake Griffioen

PR Worx                                                                       Samsung Electronics South Africa

011 896 1818                                                                 011 549 1646

082 791 2202                                                                 071 671 2052

anneke@prworx.co.za                                                   Jakes.g@samsung.com

Yopa App a platform that connects shoppers to retailers coming soon to Android,Apple & Windows

‘’Yopa App is a platform that connect shoppers to retailers during sales ,discounts and promotion periods’’. Consumers can now start discovering deals, updates and promotions with the help of their social connections, family, co-workers and friends. With our discount/distance platform that allows consumers to discover/compare products during sale and promotion periods in real time. We are helping shoppers find great deals and helping businesses reach their target audience in a more efficient way’’ .

Yopa understands the hardship of browsing through multiple sites and checking through different stores for the best deals, and being spammed with countless deals you are not interested in. You don’t really know how close you are to what you need, and many times you miss deals that are in very close proximity to your location. YoPa is dedicated to find you the best deals and deliver results to you in real time, as if that is not enough, you can imploy the help of your social connections, family, workers and friends to find your needs for you. We are Your Own Personal Assistant. Yopa! Let your needs find you.



Follow your needs, follow your favorite brands,categories to get tailored updates just for your timeline and notifications.


Grab the needs you want and you can see where they are available and select the most suitable option for you either online or in-store experience and let us take you there.


Send a Rescue alert out to your family, friends, social circle on the app if a product on your timeline is out of your physical range,price range. Rescue allow your circle to assist you in sourcing for your need. Rescue allows your friend to see your needs and share it with you. Share your discovery with your circle too.


Smash the products that doesn’t suit your need so you can always keep your timeline neat and spam free, then simply let us continue searching for your needs.

It is the objective of the Yopa App to make use of technology to address the problems that have in fact arisen as a result of exponential growth in accessibility to technology.

The Yopa App is a B2C( Business to Consumer ) platform that is using Social Media Experience and Mobile Technology(app) to change the way we shop, the way we view advertisements, the way we navigate the web and the physical spaces in our lives


Xiaomi Mi Mix 2S matches iPhone X and Mate 10 Pro in DxOMark

Xiaomi isn’t known for highly rated cameras on their smartphones, but things are slowly changing in favor of the Chinese brand.

As mentioned in our launch article, Xiaomi’s latest flagship handset, the Mi Mix 2S, has garnered a score of 97 on DxOMark, which rates and ranks the cameras of smartphones from popular brands.

That’s a big deal, because that places the Mi Mix 2S on the same level as the Apple iPhone X and Huawei Mate 10 Pro’s cameras — two of the best we’ve reviewed and compared recently. Only the Google Pixel 2 and Samsung Galaxy S9+ outrank these three phones, but not by much.

What’s more impressive, however, is the photo score of the Mi Mix 2S, which is a whopping 101. That’s higher than the 99 of the Pixel 2 and 100 of the Mate 10 Pro, meaning the Xiaomi flagship is part of the cream of the crop in terms of still photography.

It’s only the video score that brings down the Mi Mix 2S’ overall rating. With only 88 points, it ranks lowest out of all the phones mentioned here. DxOMark faults the handset for its loss of fine details and inconsistencies during recording.

Still, Xiaomi has to be proud about this rating. Adding a secondary camera with optical zoom and integrating AI for better processing turned out to be a winning formula. This is the first time Xiaomi hit such a high note for its cameras, and they’re rewarded for it.

You can learn more about DxOMark’s detailed breakdown of the Mi Mix 2S on their website.

Samsung Galaxy A8(2018) Review In Partnership With PR Worx

Like Samsung’s more premium S series, the Galaxy A8 (2018) has rounded edges. This aesthetic gives the Galaxy A8 (2018) the impression of having a borderless screen with the display seemingly merging into the case. Samsung has called this Infinity Display.

The design only echoes that found in the arguably more stylish Galaxy S8 and S8+though. While the Galaxy A8 (2018) inherits the glass back from its more premium sibling, the edges of the device taper more gradually. The display and rear glass are covered by Gorilla Glass 5 and held together within a metal frame. The 8.4 mm (~0.33 in) case is extremely robust, to the extent that we could not bend or twist it. The device is available in Black, Orchid Gray, Gold, and Blue.

The high screen-to-body ratio has forced Samsung to move the fingerprint sensor to the back of the device, slightly recessing it underneath the main camera.  The Galaxy A8 (2018) is IP68 certified, meaning that it is both dust and waterproof. Samsung details that the device is only waterproof up to 1.5 meters (~4.9 ft) for up to thirty minutes, which corresponds with IP67.

Samsung offers the Galaxy A8 (2018) in multiple configurations, with every variant powered by the Exynos 7885, and 4 GB of RAM. Aside from the choice of colours, there are 32 and 64 GB variants, and the choice of single or dual nano-SIM variants.

MicroSD card expansion can increase internal storage by up to 256 GB with it being possible to move both media files and apps to expandable storage.

The Galaxy A8 (2018) has a USB-C port that supports 2.0 speeds, fast charging, and USB OTG. Audio is handled by a 3.5 mm jack that is located next to the USB-C port.

The Galaxy A8 (2018) runs Android Nougat 7.1.1 and version 8.5 of Samsung’s UI, also found on the Galaxy Note 8 and Galaxy S8. There is a selection of Samsung apps preinstalled along with apps from Google, Facebook and Microsoft. These can only be disabled; none of them can be uninstalled.

Communication and GPS
The Galaxy A8 (2018) supports 802.11 a/b/g/n/ac, which means that it can connect to both 2.4 GHz and 5 GHz Wi-Fi networks. Consequently, we found that transmission speeds are fast, with the Galaxy A8 (2018) achieving 269 MBit/s send and 280 MBit/s receive speeds with our reference Linksys EA8500 router. Equally, the Galaxy A8 (2018) supports LTE Cat. 11, with download and upload speeds of up to 600 Mbps and 50 Mbps respectively. NFC and Bluetooth 5.0 are included, the latter of which will be supported by Android Oreo 8.0 onwards. Android Nougat 7.1.1. supports only up to Bluetooth 4.2.

GPS, GLONASS and BeiDou determine location. This helps the Galaxy A8 (2018) achieve a relatively precise location accuracy of up to four meters (~13 ft) outside and nine meters (~29.5 ft) inside. On our test bike ride, in which we compared the Galaxy A8 (2018)’s location accuracy against a Garmin Edge 500, we often found that the mid-range smartphone plotted a better route than the professional device. Ultimately, the Galaxy A8 (2018) only calculated that we had travelled fifty meters (~164 ft) more over nearly 9 km (~5.6 mi) than the Garmin Edge 500. Hence, the Galaxy A8 (2018) should be accurate enough for most people’s needs.

Telephone and Call Quality
The Galaxy A8 (2018) is available in either single or dual SIM variants, the latter of which Samsung refers to as the Galaxy A8 (2018) Duos. The Duos variant has dedicated slots for two nano-SIMs and a microSD card. When both SIMs are activated calls, messages, and data services can be assigned to a specific SIM card.

Our tests reveal that the device has good voice quality with voices remaining understandable on hands-free provided that the ambient noise is not too loud.


The Galaxy A8 (2018) has a dual-camera. Surprisingly though, it is found on the front, with the main rear-camera having a single sensor. This dual front-facing camera array brings a considerable arsenal for selfies.

The front-facing array has 16 MP and 8 MP sensors, allowing for varying focal lengths and bokeh effects. There are many filters, such as beauty effects or stickers. Picture and video quality is adequate, with both the front and rear cameras able to record video up to 1080p and 30 FPS.

Although equipped with only one sensor, the 16 MP main camera has plenty up its sleeve. The f 1.7 lens, 1.12µm pixel size, and 1/2.8″ sensor give the Galaxy A8 (2018) good low-light performance, while phase detection autofocus provides fast focusing.

The daylight shots in scenes one and two show that the main camera captures fine details with the sharpness of the focus enhancing the vibrant color scheme.

Samsung includes a modular power supply, a USB Type-A to Type-C cable, headphones, a SIM tool, and a quick start guide in the box. There are currently no official accessories listed on Samsung’s website.

Input devices and Operation
Samsung has preinstalled its own keyboard as the default; we particularly like its clear structure and the numerous functions and settings that are available. The Galaxy A8 (2018) also has accessibility features such as high-contrast fonts, dictation, and a flashlight notification notifying you of incoming messages or alarms. There is a ‘simple mode’ for smartphone beginners that applies a simpler layout and larger controls. A nice extra feature is the multi-window mode, which can display several apps simultaneously.

There are three physical buttons: the volume rocker on the left-hand side, the power button on the right-hand side, and the fingerprint sensor on the rear, which sits below the main-camera. The Galaxy A8 (2018) uses capacitive buttons for navigation, while the display has ten finger multi touch that is sensitive and worked without delay during our tests.


The Galaxy A8 (2018) has a 5.6-inch Super AMOLED display with a resolution of 2,220×1,080, and a pixel density of 441 PPI. The display has an 18.5:9 aspect ratio thanks to its narrow bezels. The display achieves a brightness of 589 cd/m² with the ambient light sensor switched, which reduces to 347 cd/m² in manual mode. The display was brighter still in the APL50 test, which simulates an even distribution of light and dark areas, reaching up to 684 cd/m². On average, the display achieved 538.3 cd/m², which should be bright enough for use in every situation.

The OLED display is 96 percent evenly lit and theoretically has an infinite contrast ratio; pixels can be individually turned off, producing total blacks.

Unfortunately, as with most OLED panels, the Galaxy A8 (2018) uses pulse width modulation (PWM) to control brightness. We measured PWM flicker at 242.7 Hz, which while being relatively low is still likely to be noticed by those with sensitive eyes after prolonged use.

Energy consumption
The Galaxy A8 (2018) is energy efficient, requiring a maximum of 1.1 W while idling and up to 5.97 W under load. The combination of 3.86 W average power consumption and a 3,000 mAh battery should guarantee a long battery life. The battery is lithium-ion and is non-removable. The 10 W power supply supports Fast Charge, fully recharging the Galaxy A8 (2018) in ninety-five minutes.

Power Consumption
Off / Standby darklight 0 / 0.15 Watt
Idle darkmidlight 0.67 / 1.02 / 1.1 Watt
Load midlight 3.86 / 5.97 Watt
color bar

Key: min: dark, med: mid, max: light Metrahit Energy

Battery Life
Its low power consumption helps the Galaxy A8 (2018) achieve above average battery life in contrast to our comparison devices. During our realistic Wi-Fi test, in which we simulated the load required to load websites at 150 cd/m² brightness, the Galaxy A8 (2018) lasted for eleven hours. This impressive runtime extended to fifteen hours in our H.264 video test. The Galaxy A8 (2018) lasted far longer than its competitors here, despite being beaten in some of our other battery tests.

With the Galaxy A8 (2018), Samsung has made a well-equipped mid-range smartphone that has a lot of things going for it. The design looks and feels premium while being IP68 rated. The Super AMOLED Infinity-Display is visually impressive, being well tuned, bright while also having a high resolution. Selfie fans get a dual front-facing camera with good optics that leaves room for gimmicks while still taking good pictures, the latter of which also applies to the 16 MP rear

This article was published in partnership with PR Worx

Tech Up Children’s Learning

JOHANNESBURG, South Africa, 26 March 2018. Anyone entering the workforce today must have at the very least a basic knowledge of technology and how to navigate a digital world. Depending on the industry or type of job, the level of knowledge required differs. Digital learning thrusts students into a world of improved educational opportunities, exposing them to a wealth of information at the click of a button. Digital learning allows for more dynamic content as well as higher engagement levels.

Another advantage of digital learning is the move towards a paperless space, whether the high cost of printing textbooks will fall away, allowing all information required for learners to be digitally produced. In addition to the textbook content, learners can also access supplementary information via the internet. The right tool for the job is essential to enhance the digital education drive, giving learners the very best chance of upping their skills in the classroom and into the future.

Samsung Electronics South Africa has addressed the challenge of finding the right technology to support children’s education with the School in a Box (SIB) solution, which is an educational tool built around a Samsung tablet that packages all the hardware needed to support learning in a single, comprehensive kit for students and schools.

Mike van Lier, Director of Consumer Electronics, Samsung South Africa, says, “To ensure that education in South Africa embraces the future and to give our youth the best opportunity to enter the workplace with confidence, we’ve created a solution that integrates all the tools they’ll need to get the most out of digital learning programmes.”

The SIB components were selected after evaluation of schools’ needs, learner preferences and the most effective tools uncovered during Samsung South Africa’s previous collaborations with schools across South Africa and Africa. Samsung has been bridging the digital divide in Africa for several years, through its support of individual schools and learning initiatives, as well as through the launch of innovative digital learning solutions such as the highly successful Samsung Solar Powered Internet Schools.

There are three different SIB packages available: Essential: A Samsung Galaxy Tablet 3 Lite (T116), a Bluetooth Universal Keyboard Cover, 16GB mSD card, in-ear earphones, screen protector and a tablet carry case; Classic: A Samsung Tab E (T561), bluetooth keyboard case, Samsung 16GB mSD card,  in-ear headphones, screen protector and tablet carry case;Advanced: with a Samsung Tab A (P555), bluetooth keyboard case, Samsung 16GB mSD card, in-ear headphones, screen protector, and tablet carry case. The SIB is backed by a one-year Tech Insurance Policy, which delivers 12 months accidental damage insurance and one free screen replacement for the tablet device. All are available through online retailers Loot, Telkom,Nexus Hub, Pc Link Computers, Young Tech Solutions, Geewiz and Buyanything. van schaiks book store,

“Ideally, schools that are eager to implement digital tools to support learning, shouldn’t have to worry about the tools required – their role should be limited to teacher professional development, creating an enabling environment in the classroom, through the installation of Wi-Fi infrastructure, servers and smart boards. Digital learning strategies would be best supported if students use standardised education technology in the class.

“As technology becomes even more integrated into everyday life and learning, Samsung will continue to create innovative, robust and relevant tools to enhance digital education,” concludes van Lier.

About Samsung Electronics Co., Ltd.

Samsung inspires the world and shapes the future with transformative ideas and technologies. The company is redefining the worlds of TVs, smartphones, wearable devices, tablets, digital appliances, network systems, and memory, system LSI, foundry and LED solutions. For the latest news, please visit the Samsung Newsroom at https://news.samsung.com/za/

For further information, please contact:

Noma Mbatha                                                               Phathutshedzo Nepfumbada

PR Worx                                                                       Samsung Electronics South Africa

011 896 1818                                                                 011 549 1646

061 258 2723                                                                 078 213 4975

noma@prworx.co.za                                                      p.nepfumbaba@samsung.com

3 graphs which show how expensive MTN’s data is

ICASA has released its latest tariff report, which shows that MTN’s data prices in South Africa are more expensive than most of the territories in which it operates.

The regulator’s tariff report is based on 160 tariff notifications which it received between 1 July 2017 and 31 December 2017.

As part of the report, ICASA benchmarked data prices for 500MB, 1GB, and 2GB bundles within the SADC and BRICS countries.

For MTN and Vodacom, which operate in multiple countries, the regulator also benchmarked South African prices against the prices in their other territories.

What the report shows

The report shows that MTN South Africa charges the highest price for a 500MB data bundle when compared to the other countries in which it operates.

“This is concerning, since 500MB is the preferred data bundle by low-income earners,” said ICASA.

MTN SA charges the third highest price for a 1GB data bundle, and the second highest price in the 2GB data bundle category.




MTN responds

MTN South Africa said it is aware of ICASA’s latest tariff report and the findings within it.

“MTN has not yet engaged with ICASA on the contents of the report and welcomes the opportunity to discuss each of the territories mentioned, and the criteria by which they were selected, with the regulator,” it said.

It added that pricing in each of MTN’s territories outside of South Africa is determined by cost factors and production functions associated with establishing and operating a network in these regions.

“Differences in data tariffs are also unique to each region and subject to varying network operation cost factors, such as electricity usage, legal and licensing fees, spectrum fees, and network infrastructure deployment,” said MTN SA.

“Providing a product offering that is best suited to our customers remains a core priority for MTN, ensuring that the best value and deals are provided across the continent.”

It is because of this that MTN is in the process of reviewing its product offering and pricing transformation to create a more suitable product portfolio for customers.

Twitter is reportedly planning to ban cryptocurrency ads

In January, Facebook prohibited ads for currencies such as Bitcoin in an effort to combat deceptive marketers, while Google followed suit last weekSky News says (via Engadget) that the new advertising policies would ban worldwide ads for ICOs, token sales, and cryptocurrency wallets. The site might also ban ads for cryptocurrency exchanges, but with some possible exceptions. The ban could begin in as soon as two weeks. We’ve reached out to Twitter for comment, and will update this post if we hear back.

This isn’t the first set of steps that Twitter has taken to stop deceptive cryptocurrency scams: it says that it will start taking down accounts that ask for small amounts of a cryptocurrency while impersonating celebrities.

SABC blew over R700,000 on luxury SUV for former chairman

The Sunday Times has revealed that the SABC has spent R740,000 on an Audi Q5 for former board chairman Mbulaheni Maguvhe.

This car was bought at a time when the state broadcaster was in serious financial trouble and is now gathering dust in an SABC parking lot in Auckland Park.

Maguvhe resigned as SABC board chairman in December 2016, following a parliamentary inquiry looking into the board’s fitness to hold office.

He was the last SABC board member who was investigated as part of the inquiry to resign, despite being unable to account for controversial developments at the public broadcaster.

His resignation was widely welcomed by political parties, but they highlighted that they still wanted him to be held accountable for the crisis at the SABC.

ANC Chief whip in Parliament Jackson Mthembu described Maghuve as a stumbling block to resolving the cooperate governance at SABC.

“It is unfortunate that Prof Maguvhe chose to sacrifice his personal reputation and professional integrity by putting his selfish personal interests ahead of those of South Africans, who are the shareholders of the SABC,” Mthembu said in a statement.

A report by parliament’s legal services in 2017 accused Maguvhe of trying to mislead the inquiry over the labour dispute between the SABC 8 and the SABC.

What you pay for data and calls on a new prepaid SIM


The default tariff plans applied to each of our prepaid SIM cards – along with their call, SMS, and data rates – are listed below.

MTN – MTN Base

The MTN base plan features flat rates.

  • Calls within network – R1.50 per minute
  • Calls to other network – R1.50 per minute
  • Local SMS – R0.50
  • OOB data rate – R1.50 per MB

MTN logo yellow

Vodacom – Power Bonus

Vodacom’s Power Bonus plans grants users an extra 50% of their airtime purchases in additional airtime, valid for a day.

  • Calls within network – R1.50 per minute
  • Calls to other network – R1.50 per minute
  • Local SMS – R0.50
  • OOB data rate – R0.99 per MB

Vodacom redesigned branding

Cell C – EasyChat

Cell C’s EasyChat plan includes its MegaData benefits, which reward users with free data.

  • Calls within network – R1.50 per minute
  • Calls to other network – R1.50 per minute
  • Local SMS – R0.50
  • OOB data rate – R1.10 per MB


Telkom – Telkom More

On this plan, a user’s airtime is doubled every time they recharge with R5 or more. This free airtime expires after 7 days.

  • Calls within network – R1.90 per minute
  • Calls to other network – R1.90 per minute
  • Local SMS – R0.50
  • OOB data rate – R0.29 per MB

Telkom shadow logo

Facebook wants you to know: this wasn’t a breach

Facebook wants you to know: this wasn’t a breach.

Yes, Cambridge Analytica, the data-analysis firm that helped U.S. President Donald Trump win the 2016 election, violated rules when it obtained information from some 50 million Facebook profiles, the social-media company acknowledged late Friday. But the data came from someone who didn’t hack the system: a professor who originally told Facebook he wanted it for academic purposes.

He set up a personality quiz using tools that let people log in with their Facebook accounts, then asked them to sign over access to their friend lists and likes before using the app. The 270,000 users of that app and their friend networks opened up private data on 50 million people, according to the New York Times. All of that was allowed under Facebook’s rules, until the professor handed the information off to a third party.

Facebook said it found out about Cambridge Analytica’s access in 2015, after which it had the firm certify that it deleted the data. On Friday, Facebook said it now knows Cambridge actually kept it — an infraction that got Cambridge suspended from the social network. Once that was announced, executives quickly moved on to defending Facebook’s security.

“This was unequivocally not a data breach,’’ longtime Facebook executive Andrew Bosworth said on Twitter. “People chose to share their data with third-party apps and if those third-party apps did not follow the agreements with us/users it is a violation.’’ Alex Stamos, Facebook’s head of security, echoed the same arguments. Cambridge denied doing anything illegal or using the information in the 2016 presidential election; Facebook says it has no way of knowing how or whether the data was used for targeting in the Trump campaign.

Facebook’s advertising business depends on users sharing their most personal data via its social network. But the company’s “not a breach” argument isn’t likely to make users feel any safer or more comfortable doing so — especially given that it’s already under fire for missing that Russian actors were purchasing U.S. election ads on the site to sway voter opinions, as well as running fake accounts disguised as real Americans. The company has also been fending off accusations that it’s too slow to notice or react to harmful content.

U.K. Inquiry

The latest incident has raised new questions about what technical guardrails Facebook has in place to prevent authorized users from sharing sensitive information, and how much visibility the company has into how outsiders use the data.

Facebook wouldn’t comment on those questions, saying only that it has made significant improvements in its ability to “detect and prevent violations” by app developers, such as random audits of applications using its tools to make sure they’re following the rules. And it’s no longer letting developers who use Facebook’s login tools see information on their users’ friends.

In London, the head of a parliamentary committee said he will ask Facebook Chief Executive Officer Mark Zuckerberg to send a senior executive to testify as part of its inquiry into fake news. Damien Collins, chairman of the Digital, Culture, Media and Sport Committee, said it’s not acceptable for companies to send witnesses who avoid responding to questions “by claiming not to know the answers.”

The disclosure of Facebook’s actions also underscores it’s continuing struggle to anticipate negative consequences of its lack of oversight – in some cases taking action only after things go wrong. The company in the past two years has worked to understand and counteract the spread of misinformation on its site, the use of its automated advertising system for racist targeting, the proliferation of fake user accounts, the spread of violent video, and more.

But when the company tries to explain what it’s doing, it grapples with the perception that it’s shirking responsibility for its problems, treating them as public-relations snafus instead of serious product flaws.

Stamos, the Facebook security executive, deleted his original tweets on Cambridge Analytica, saying he wasn’t so good at “talking about these things in the reality of 2018.” Specifically, he said he didn’t know how to balance his personal beliefs with his responsibility to Facebook and his co-workers, amid all the criticism.

“We have collectively been too optimistic about what we build and our impact on the world,” Stamos wrote Saturday on Twitter. “Believe it or not, a lot of the people at these companies, from the interns to the CEOs, agree.”