• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Tech

Mark Zuckerberg Finally Speaks Out About Cambridge Analytica Crisis. Here’s What He Said

By
Verne Kopytoff
Verne Kopytoff
Senior Editor, Tech
Down Arrow Button Icon
By
Verne Kopytoff
Verne Kopytoff
Senior Editor, Tech
Down Arrow Button Icon
March 21, 2018, 4:52 PM ET

After five days of silence during one of Facebook’s biggest privacy crises, CEO Mark Zuckerberg has finally spoken publicly about it by vowing to do better.

“The good news is that the most important actions to prevent this from happening again today we have already taken years ago,” he said in a Facebook post on Friday. “But we also made mistakes, there’s more to do, and we need to step up and do it.”

In recent days, a series of reports have detailed how Cambridge Analytica, a British data mining firm, gained access to personal data on 50 million Facebook users and relied on it as part of its work for Donald Trump’s presidential campaign in 2016. A researcher who had access to the data after creating an app for taking personality quizzes in 2013 had handed Cambridge Analytica a copy of that data, in violation of Facebook’s policies.

The app itself had only 300,000 users. But it also collected information about all of its users’ friends.

News about Cambridge Analytica’s access to the information, which Facebook users had never consented to, set off a chorus of criticism about Facebook’s privacy safeguards. Some users have responded by saying they would delete their accounts, a potential business catastrophe for Facebook, while government regulators and lawmakers promised to investigate and possibly toughen privacy laws.

Until now, Facebook has tried to weather the PR storm without putting its top executives in the crossfire, generating questions about their leadership and whether the social network was really taking responsibility. Instead, Facebook’s PR team and lower ranking leaders have led the company’s defense by drawing technical distinctions between what happened and more common breaches by hackers, and by pointing out that Facebook curtailed the amount of user data it shared with app makers in 2014.

In his post on Friday, Zuckerberg tried to get out in front of the growing problem by calling the situation a “breach of trust” between the researcher, Aleksandr Kogan; Cambridge Analytica, which has since suspended its CEO; and Facebook. But he also acknowledged that it was “a breach of trust between Facebook and the people who share their data with us and expect us to protect it” while adding, “we need to fix that.”

Zuckerberg’s plan is to investigate all apps that had access to large amounts of information before Facebook changed its data sharing policies in 2014 and to conduct an audit of any app that shows suspicious activity. “We will ban any developer from our platform that does not agree to a thorough audit,” he promised, along with banning those that Facebook finds misused personally identifiable information and notifying users who were impacted.

Additionally, Zuckerberg said Facebook would further restrict the data it shares with developers. That includes cutting off developer access to data for users who have not used their apps in three months and limiting the amount of data shared with apps when users sign in to only names, profile photos, and email addresses.

Facebook users can also expect to see a new tool at the top of their News Feeds that show the apps they’ve used and “an easy way” to block those apps from accessing personal data. Facebook already gives users the ability to control some of their data sharing in their privacy settings, but many users don’t bother to adjust the settings or don’t realize they can.

Although Zuckerberg talked a lot about protecting user information, he did not mention why Facebook overlooked the potential problems inherent in giving developers such broad access to user data in the first place. Instead, he said the policy was merely intended made to make Facebook “more social.”

“We will learn from this experience to secure our platform further and make our community safer for everyone going forward, Zuckerberg said.

Whether that’s enough for users and regulators is an open question.

https://www.facebook.com/zuck/posts/10104712037900071

 

About the Author
By Verne KopytoffSenior Editor, Tech
LinkedIn iconTwitter icon

Verne Kopytoff is a senior editor at Fortune overseeing trends in the tech industry. 

See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

amit
AISoftware
$96 billion giant ServiceNow doesn’t see a ‘SaaSpocalypse.’ It sees the ‘hard lift, heavy lifting’ phase just beginning
By Nick LichtenbergMay 7, 2026
5 hours ago
Indosat CEO Vikram Sinha is building an AI for Indonesia’s local languages. Can he make a business case for sovereignty? 
AsiaAsia Agenda
Indosat CEO Vikram Sinha is building an AI for Indonesia’s local languages. Can he make a business case for sovereignty? 
By Nicholas GordonMay 7, 2026
8 hours ago
PARIS, FRANCE - JUNE 16: Chief Executive Officer of SpaceX and Tesla and owner of Twitter, Elon Musk attends the Viva Technology conference dedicated to innovation and startups at the Porte de Versailles exhibition centre on June 16, 2023 in Paris, France. Elon Musk is visiting Paris for the VivaTech show where he gives a conference in front of 4,000 technology enthusiasts. He also took the opportunity to meet Bernard Arnaud, CEO of LVMH and the French President. Emmanuel Macron, who has already met Elon Musk twice in recent months, hopes to convince him to set up a Tesla battery factory in France, his pioneer company in electric cars. (Photo by Chesnot/Getty Images)
AIElon Musk
Elon Musk called Anthropic ‘evil’ 3 months ago. Now he’s taking $4 billion to become its data landlord
By Eva RoytburgMay 7, 2026
10 hours ago
keynes
AIdisruption
The AI job apocalypse is ‘unhelpful marketing, bad economics and worse history,’ a16z says
By Nick LichtenbergMay 7, 2026
12 hours ago
Stripe CEO Patrick Collison says a wave of token theft is wreaking havoc on the AI economy
CybersecurityStripe
Stripe CEO Patrick Collison says a wave of token theft is wreaking havoc on the AI economy
By Jeff John RobertsMay 7, 2026
12 hours ago
people watching tv
Arts & EntertainmentGen Z
Gen Z just broke the streaming model: A majority subscribe, binge, and cancel over and over, study finds
By Jake AngeloMay 7, 2026
12 hours ago

Most Popular

U.S. Treasury will have to borrow $2 trillion this year just to continue functioning—more than $166 billion every month
Economy
U.S. Treasury will have to borrow $2 trillion this year just to continue functioning—more than $166 billion every month
By Eleanor PringleMay 7, 2026
19 hours ago
Tokyo is throwing out its strict office dress code and asking workers to wear shorts amid the war in Iran energy crisis
Success
Tokyo is throwing out its strict office dress code and asking workers to wear shorts amid the war in Iran energy crisis
By Emma BurleighMay 5, 2026
3 days ago
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
Magazine
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
By Sharon GoldmanMay 6, 2026
2 days ago
California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
North America
California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
By Sasha RogelbergMay 7, 2026
9 hours ago
The 'PayPal Mafia' built a $1.5 billion fintech pioneer. The company they left behind is on life support
Startups & Venture
The 'PayPal Mafia' built a $1.5 billion fintech pioneer. The company they left behind is on life support
By Eva RoytburgMay 6, 2026
1 day ago
The IRS may owe COVID-era refunds to tens of millions of taxpayers. Here’s who could qualify
Personal Finance
The IRS may owe COVID-era refunds to tens of millions of taxpayers. Here’s who could qualify
By Sydney LakeMay 6, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.