December 2018: Facebook is criticized after a bomb report found that the company allowed more than 150 companies, including Netflix, Spotify and Bing, to access unprecedented amounts of user data, such as private messages.
Some of these & # 39; partners & # 39; They had the ability to read, write, and delete private messages from Facebook users and view all participants on a topic.
It also allowed Microsoft's search engine, known as Bing, to see the names of all Facebook users' friends without their consent.
Amazon was allowed to get usernames and contact information from its friends, and Yahoo could view friend post streams.
Since last year, Sony, Microsoft and Amazon have been able to get users' email addresses from their friends.
September 2018: Facebook reported that it had been hit by the worst data breach ever, affecting 50 million users – including those of Facebook boss Mark Zuckerberg and COO Sheryl Sandberg.
Attackers exploited the site's "View As" feature, which allows people to see what their profiles look like to other users.
Facebook says it has found no evidence & # 39; so far & # 39; that hackers broke into third-party applications after a data breach exposed 50 million users (image)
Unknown attackers took advantage of a code feature called 'Access Tokens' to control people's accounts, potentially giving hackers access to private messages, photos, and posts – although Facebook said there were no evidences.
Hackers have also attempted to collect people's private information, including name, gender and hometown, on Facebook's systems.
Facebook said it still does not know if the affected account information was misused or accessed, and is working with the FBI to conduct further investigations.
However, Mark Zuckerberg assured users that passwords and credit card information were not accessed.
As a result of the breach, the company disconnected about 90 million people from its accounts earlier today as a security measure.
March 2018: Facebook made headlines earlier this year after data from 87 million users were inaccessibly accessed by Cambridge Analytica, a political consultancy.
The disclosure led to government investigations into the company's privacy practices around the world and fueled a movement of & # 39; # deleteFacebook & # 39; among consumers.
The communications company Cambridge Analytica had offices in London, New York, Washington, as well as Brazil and Malaysia.
The company prides itself on being able to "find its voters and get them into action" through data-driven campaigns and a team that includes data scientists and behavioral psychologists.
"In the United States alone, we have played a key role in winning presidential races as well as congressional and state elections," with data on more than 230 million US voters, says Cambridge Analytica on its website.
The company profited from a feature that meant apps could ask permission to access their own data as well as the data of all their Facebook friends.
The data company suspended its chief executive, Alexander Nix (photo), after recordings emerged from him making a number of controversial claims, including boasting that Cambridge Analytica played a central role in the election of Donald Trump.
That meant the company was able to pull information from 87 million Facebook users, although only 270,000 people gave them permission to do so.
This is designed to help them create software that can predict and influence voter choices at the ballot box.
The data company suspended its chief executive, Alexander Nix, after recordings emerged from him making a number of controversial claims, including boasting that Cambridge Analytica played a key role in the election of Donald Trump.
It is said that this information was used to help Brexit's UK campaign.
It also suffered several previous problems.
In 2013, Facebook unveiled a software flaw that exposed 6 million user phone numbers and email addresses to unauthorized viewers for a year, while a technical flaw in 2008 revealed confidential birthdates on 80 million profiles. of Facebook users.
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