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
      Nvidia's biggest customers are becoming its biggest threat - Jensen Huang

      Nvidia’s best customers are becoming its biggest threat

      30 August 2026
      Nasa launches telescope that will map two billion galaxies

      Nasa launches telescope that will map two billion galaxies

      30 August 2026
      Chinese car makers go after South Africa's EV and bakkie buyers

      Chinese car makers go after South Africa’s EV and bakkie buyers

      30 August 2026
      South African talk radio is now searchable - Locl.co.za

      South African talk radio is now searchable

      28 August 2026
      JSE-listed ICT firm suspended for not paying its own dividend

      JSE-listed ICT firm suspended for not paying its own dividend

      28 August 2026
    • World
      AI-generated music banned from Australian charts

      AI-generated music banned from Australian charts

      26 August 2026
      Traders brace for a R4.5-trillion swing in Nvidia's value

      Traders brace for a R4.5-trillion swing in Nvidia’s value

      25 August 2026
      Russia building its own Starlink - and faster than expected - Vadym Skibitskyi

      Russia building its own Starlink – and faster than expected

      11 August 2026
      Meta AI will now tell parents if their teen is in crisis

      Meta AI will now tell parents if their teen is in crisis

      17 July 2026
      IBM shares crash 25% as AI upends software spending - Arvind Krishna

      IBM shares crash 25% as AI upends software spending

      15 July 2026
    • In-depth
      Google DeepMind CEO Demis Hassabis. Image: John Sears

      The plan to stop AI from breaking the world

      16 July 2026
      The internet has a Strait of Hormuz problem

      The internet has a Strait of Hormuz problem

      15 July 2026
      AI boom sparks rally, frenzy and fear

      AI boom sparks rally, frenzy and fear

      11 June 2026
      Every plug-in hybrid on sale in South Africa, ranked by price - Lamborghini Temerario

      Every plug-in hybrid on sale in South Africa, ranked by price

      7 June 2026
      What Wi-Fi 8 will mean for wireless networks

      What Wi-Fi 8 will mean for wireless networks

      1 June 2026
    • TCS
      Watts & Wheels S1E8: 'Tesla lands in Africa, just not here'

      Watts & Wheels S1E8: ‘Tesla lands in Africa, just not here’

      24 August 2026
      Meet the CIO | Discovery's Derek Wilcocks on AI, guardrails and growth

      Meet the CIO | Derek Wilcocks on how AI personalised Vitality

      13 August 2026
      TCS | Money just became native to the internet - Steven Boykey Sidley

      TCS | Money just became native to the internet – Steven Boykey Sidley

      12 August 2026
      TCS+ | Specops' Darren James on continuous trust in an AI world

      TCS+ | Specops’ Darren James on continuous trust in an AI world

      7 August 2026
      TCS+ | How AI is turning hardware into a subscription service - Shane van der Merwe Merchant West

      TCS+ | How AI is turning hardware into a subscription service

      6 August 2026
    • Opinion
      The fragile joint in the Capitec machine - Pambos Soteriades

      The R197-billion market the banks can’t reach

      25 August 2026
      South African tech's compounding debt problem - Jannie van Zyl

      Management consulting as we know it is over

      21 August 2026
      South African tech's compounding debt problem - Jannie van Zyl

      The most dangerous customer is the quiet one

      10 August 2026
      South African tech's compounding debt problem - Jannie van Zyl

      South African tech’s compounding debt problem

      29 July 2026
      The fragile joint in the Capitec machine - Pambos Soteriades

      Best network, worst vibes: the puzzle of SA telecoms

      20 July 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
      • CM.com
      • Contactable
      • 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
      • Vox
      • 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
      • Policy and regulation
      • Public sector
      • Retail and e-commerce
      • Satellite communications
      • Science
      • SMEs and start-ups
      • Social media
      • Talent and leadership
      • Telecoms
      • Watts & Wheels
    • 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

    Meta wins by settling

    Meta wins by settling

    27 August 2026
    Facebook and Instagram are getting nighttime curfews for children

    Facebook and Instagram are getting nighttime curfews for children

    26 August 2026
    Meta cash flow collapses as AI bill hits $145-billion - Mark Zuckerberg

    Meta cash flow collapses as AI bill hits $145-billion

    30 July 2026
    Company News
    The stuff that doesn't fit on the quote - Graham Millar SevenC

    The stuff that doesn’t fit on the quote

    28 August 2026
    Can you trust the AI speaking to your customers? - 1Stream

    Can you trust the AI speaking to your customers?

    27 August 2026
    Telviva launches Viva, a digital agent built for South African businesses - Telviva CEO David Meintjes

    Telviva launches Viva, a digital agent built for South African businesses

    27 August 2026
    Opinion
    The fragile joint in the Capitec machine - Pambos Soteriades

    The R197-billion market the banks can’t reach

    25 August 2026
    South African tech's compounding debt problem - Jannie van Zyl

    Management consulting as we know it is over

    21 August 2026
    South African tech's compounding debt problem - Jannie van Zyl

    The most dangerous customer is the quiet one

    10 August 2026

    Subscribe to Updates

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

    Latest Posts
    Nvidia's biggest customers are becoming its biggest threat - Jensen Huang

    Nvidia’s best customers are becoming its biggest threat

    30 August 2026
    Nasa launches telescope that will map two billion galaxies

    Nasa launches telescope that will map two billion galaxies

    30 August 2026
    Chinese car makers go after South Africa's EV and bakkie buyers

    Chinese car makers go after South Africa’s EV and bakkie buyers

    30 August 2026
    South African talk radio is now searchable - Locl.co.za

    South African talk radio is now searchable

    28 August 2026
    © 2009 - 2026 NewsCentral Media
    Built and maintained by Chronon
    • 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}