Close Menu
TechCentralTechCentral

    Subscribe to the newsletter

    Get the best South African technology news and analysis delivered to your e-mail inbox every morning.

    Facebook X (Twitter) YouTube LinkedIn
    WhatsApp Facebook X (Twitter) LinkedIn YouTube
    TechCentralTechCentral
    • News
      South Africa's crypto progress on the line

      South Africa’s crypto progress on the line

      27 April 2026
      Greg Brockman's diary takes centre stage in Musk vs OpenAI

      Greg Brockman’s diary takes centre stage in Musk vs OpenAI

      27 April 2026
      Malatsi withdraws AI policy after fictitious sources scandal - Solly Malatsi

      Malatsi withdraws AI policy after fictitious sources scandal

      26 April 2026
      How AI could quietly hollow out South Africa's job market

      How AI could quietly hollow out South Africa’s job market

      26 April 2026
      SpaceX bets the rocket farm on AI

      SpaceX bets the rocket farm on AI

      26 April 2026
    • World
      DeepSeek's long-awaited V4 model enters preview

      DeepSeek’s long-awaited V4 model enters preview

      24 April 2026
      More organic compounds detected on Mars - Nasa Curiosity rover

      More organic compounds detected on Mars

      21 April 2026
      Adobe bets on AI agents to fend off cheaper rivals

      Adobe bets on AI agents to fend off cheaper rivals

      16 April 2026
      Google poised to lose ad crown to Meta

      Google poised to lose ad crown to Meta

      14 April 2026
      Grand Theft Data - hackers hit Rockstar Games - Grand Theft Auto

      Grand Theft Data – hackers hit Rockstar Games

      14 April 2026
    • In-depth
      Africa switches on as Europe dims the lights

      Africa switches on as Europe dims the lights

      9 April 2026
      The biggest untapped EV market on Earth is hiding in plain sight

      The biggest untapped EV market on Earth is hiding in plain sight

      1 April 2026
      The R18-billion tech giant hiding in plain sight - Jens Montanana

      The R16-billion tech giant hiding in plain sight

      26 March 2026
      The last generation of coders

      The last generation of coders

      18 February 2026
      Sentech is in dire straits

      Sentech is in dire straits

      10 February 2026
    • TCS

      TCS+ | ‘The ISP for ISPs’: Vox’s shift to wholesale aggregator

      20 April 2026
      TCS | Werner Lindemann on how AI is rewriting the infosec rulebook

      TCS | Werner Lindemann on how AI is rewriting the infosec rulebook

      15 April 2026
      TCS | Donovan Marsh on AI and the future of filmmaking

      TCS | Donovan Marsh on AI and the future of filmmaking

      7 April 2026
      TCS+ | Vodacom Business moves to crack the SME tech gap - Andrew Fulton, Sannesh Beharie

      TCS+ | Vodacom Business moves to crack the SME tech gap

      7 April 2026
      TCS | MTN's Divysh Joshi on the strategy behind Pi - Divyesh Joshi

      TCS | MTN’s Divyesh Joshi on the strategy behind Pi

      1 April 2026
    • Opinion
      Free calls, dead voice and Shameel Joosub's Spanish ghost - Duncan McLeod

      Free calls, dead voice and Shameel Joosub’s Spanish ghost

      22 April 2026
      The conflict of interest at the heart of PayShap's slow adoption - Cheslyn Jacobs

      The conflict of interest at the heart of PayShap’s slow adoption

      26 March 2026
      South Africa's energy future hinges on getting wheeling right - Aishah Gire

      South Africa’s energy future hinges on getting wheeling right

      10 March 2026
      Free calls, dead voice and Shameel Joosub's Spanish ghost - Duncan McLeod

      Apple just dropped a bomb on the Windows world

      5 March 2026
      R230-million in the bag for Endeavor's third Harvest Fund - Alison Collier

      VC’s centre of gravity is shifting – and South Africa is in the frame

      3 March 2026
    • Company Hubs
      • 1Stream
      • Africa Data Centres
      • AfriGIS
      • Altron Digital Business
      • Altron Document Solutions
      • Altron Group
      • Arctic Wolf
      • Ascent Technology
      • AvertITD
      • BBD
      • Braintree
      • CallMiner
      • CambriLearn
      • CYBER1 Solutions
      • Digicloud Africa
      • Digimune
      • Domains.co.za
      • ESET
      • Euphoria Telecom
      • HOSTAFRICA
      • Incredible Business
      • iONLINE
      • IQbusiness
      • Iris Network Systems
      • Kaspersky
      • LSD Open
      • Mitel
      • NEC XON
      • Netstar
      • Network Platforms
      • Next DLP
      • Ovations
      • Paracon
      • Paratus
      • Q-KON
      • SevenC
      • SkyWire
      • Solid8 Technologies
      • Telit Cinterion
      • Telviva
      • Tenable
      • Vertiv
      • Videri Digital
      • Vodacom Business
      • Wipro
      • Workday
      • XLink
    • Sections
      • AI and machine learning
      • Banking
      • Broadcasting and Media
      • Cloud services
      • Contact centres and CX
      • Cryptocurrencies
      • Education and skills
      • Electronics and hardware
      • Energy and sustainability
      • Enterprise software
      • Financial services
      • HealthTech
      • Information security
      • Internet and connectivity
      • Internet of Things
      • Investment
      • IT services
      • Lifestyle
      • Motoring
      • Policy and regulation
      • Public sector
      • Retail and e-commerce
      • Satellite communications
      • Science
      • SMEs and start-ups
      • Social media
      • Talent and leadership
      • Telecoms
    • Events
    • Advertise
    TechCentralTechCentral
    Home » World » Facebook shares tumble as pressure on Zuckerberg mounts

    Facebook shares tumble as pressure on Zuckerberg mounts

    By Agency Staff19 March 2018
    Twitter LinkedIn Facebook WhatsApp Email Telegram Copy Link
    News Alerts
    WhatsApp
    Facebook CEO Mark Zuckerberg

    Facebook shares fell the most in two months on Monday as American and European officials demanded answers to reports that a political advertising firm retained information on millions of Facebook users without their consent.

    Politicians on both sides of the Atlantic are calling on CEO Mark Zuckerberg to appear before lawmakers to explain how UK-based Cambridge Analytica, the advertising-data firm that helped Donald Trump win the US presidency, was able to harvest the personal data.

    Facebook has already testified about how its platform was used by Russian propagandists ahead of the 2016 election, but the company never put Zuckerberg himself in the spotlight with government leaders. The pressure may also foreshadow tougher regulation for the social network.

    Zuckerberg should “stop hiding behind his Facebook page and actually come out and answer questions about his company

    A top UK lawmaker on Monday backed sweeping new powers for the nation’s privacy watchdog.

    “The time has now come for us to look at giving more powers to the information commission in the UK,” Damian Collins, a Conservative and chair of the UK digital, culture, media & sports committee, told LBC radio in an interview on Monday.

    Facebook on Friday said that a professor used Facebook’s login tools to get people to sign up for what he claimed was a personality analysis app he had designed for academic purposes. To take the quiz, 270 000 people gave the app permission to access data via Facebook on themselves and their friends, exposing a network of 50m people, according to the New York Times. That kind of access was allowed per Facebook’s rules at the time. Afterward, the professor violated Facebook’s terms when he passed along that data to Cambridge Analytica.

    Facebook fell as much as 5.2% to US$175.41 on Monday in New York, wiping out all of the year’s gains so far. It was the biggest intraday drop since 12 January.

    Facebook found out about the breach in 2015, shut down the professor’s access and asked Cambridge Analytica to certify that it had deleted the user data. Yet the social network on Friday suspended Cambridge from its system, explaining that it had learnt the information wasn’t erased. Cambridge, originally funded by conservative political donor Robert Mercer, on Saturday denied that it still had access to the user data, and said it was working with Facebook on a solution.

    Criticism

    A researcher who worked with the professor on the app is now currently an employee at Facebook, which is reviewing whether he knew about the data leak.

    The denials and refutations did little to ease the criticism. Damian Collins, a British lawmaker, said on Sunday that Zuckerberg or another senior executive should appear in front of his committee because previous witnesses have avoided difficult questions, creating “a false reassurance that Facebook’s stated policies are always robust and effectively policed”. He added in an interview on British radio on Monday that Zuckerberg should “stop hiding behind his Facebook page and actually come out and answer questions about his company”.

    The next few weeks represent a critical time for Facebook to reassure users and regulators about its content standards and platform security, to prevent rules that could impact its main advertising business, according to Daniel Ives, an analyst at GBH Insights.

    “Changes to their business model around advertising and news feeds/content could be in store over the next 12-18 months,” Ives wrote in a note to investors.

    Facebook, meanwhile, has sought to explain that the mishandling of user data was out of its hands and doesn’t constitute a “breach” — a definition that would require the company to alert users about whether their information was taken, per US Federal Trade Commission rules.

    Menlo Park, California-based Facebook no longer allows app developers to ask for access to data on users’ friends. But the improper handling of the data raises systemic questions about how much companies can be trusted to protect personal information, said Nuala O’Connor, president and CEO of the Center for Democracy & Technology.

    “While the misuse of data is not new, what we now see is how seemingly insignificant information about individuals can be used to decide what information they see and influence viewpoints in profound ways,” O’Connor said in a statement. “Communications technologies have become an essential part of our daily lives, but if we are unable to have control of our data, these technologies control us. For our democracy to thrive, this cannot continue.”  — (c) 2018 Bloomberg LP

    Follow TechCentral on Google News Add TechCentral as your preferred source on Google


    Cambridge Analytica Facebook Mark Zuckerberg
    WhatsApp YouTube
    Share. Facebook Twitter LinkedIn WhatsApp Telegram Email Copy Link
    Previous ArticleMeet the CEO: Dimension Data’s Jason Goodall
    Next Article Spat erupts over .za domain-name proposal

    Related Posts

    Big Tech's Big Tobacco moment has arrived

    Big Tech’s Big Tobacco moment has arrived

    27 March 2026
    Jury finds Meta enabled child exploitation

    Jury finds Meta enabled child exploitation

    25 March 2026
    Meta planning layoffs that could hit 20% of workforce

    Meta planning layoffs that could hit 20% of workforce

    16 March 2026
    Company News
    Cybersecurity in the age of AI: why speed and trust now define resilience - iqbusiness

    Cybersecurity in the AI age: speed and trust define resilience

    24 April 2026
    Security by design is the channel's strongest pitch - Othelo Vieira

    Security by design is the channel’s strongest pitch

    23 April 2026
    Your brand is invisible to the AI that's choosing your competitor - Michelle Losco

    Your brand is invisible to the AI that’s choosing your competitor

    23 April 2026
    Opinion
    Free calls, dead voice and Shameel Joosub's Spanish ghost - Duncan McLeod

    Free calls, dead voice and Shameel Joosub’s Spanish ghost

    22 April 2026
    The conflict of interest at the heart of PayShap's slow adoption - Cheslyn Jacobs

    The conflict of interest at the heart of PayShap’s slow adoption

    26 March 2026
    South Africa's energy future hinges on getting wheeling right - Aishah Gire

    South Africa’s energy future hinges on getting wheeling right

    10 March 2026

    Subscribe to Updates

    Get the best South African technology news and analysis delivered to your e-mail inbox every morning.

    Latest Posts
    South Africa's crypto progress on the line

    South Africa’s crypto progress on the line

    27 April 2026
    Greg Brockman's diary takes centre stage in Musk vs OpenAI

    Greg Brockman’s diary takes centre stage in Musk vs OpenAI

    27 April 2026
    Malatsi withdraws AI policy after fictitious sources scandal - Solly Malatsi

    Malatsi withdraws AI policy after fictitious sources scandal

    26 April 2026
    How AI could quietly hollow out South Africa's job market

    How AI could quietly hollow out South Africa’s job market

    26 April 2026
    © 2009 - 2026 NewsCentral Media
    • Cookie policy (ZA)
    • TechCentral – privacy and Popia

    Type above and press Enter to search. Press Esc to cancel.

    Manage consent

    TechCentral uses cookies to enhance its offerings. Consenting to these technologies allows us to serve you better. Not consenting or withdrawing consent may adversely affect certain features and functions of the website.

    Functional Always active
    The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
    Preferences
    The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
    Statistics
    The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
    Marketing
    The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
    • Manage options
    • Manage services
    • Manage {vendor_count} vendors
    • Read more about these purposes
    View preferences
    • {title}
    • {title}
    • {title}