Facebook

In May 2009, University of Cambridge computer science researcher Joseph Bonneau discovered as part of his research that many social network respond to user requests to delete photographs by hiding them while remaining them on their servers. Among the worst offenders were Facebook, MySpace, Bebo, and

In February 2008, users discovered that deleting their account from Facebook does not entirely remove it. Instead, the company's servers retained copies of the information in those accounts indefinitely even after those users telephoned the company to request full removal. The company argued that

In November 2007, Facebook launched Beacon, an advertising programme that allowed third-party sites to include a script that passed Facebook notifications about users' activities on their sites such as purchases, auction bids, reviews, and game-playing. The service as originally designed offered no

In 2006, Facebook redesigned its system to add News Feed and Mini-Feed features, which the company said were intended to give users information about their social world. The News Feed was designed to provide a constantly updated stream of stories including updates from each user's Friends and

Over the years from 2005, when Facebook was still known as "Thefacebook" and its membership was still limited to verifiable Harvard students, to 2010, Facebook changed its privacy policies many times. Over that time, the default circle of who could view users' data widened over time, first to

The first iteration of Facebook, which then-student Mark Zuckerberg launched at Harvard University in 2003, was known as "Facemash", and was based on a popular website of the day, Am I Hot or Not? Using photographs of students scraped from those collected by the university's houses of residence, the

A data breach at the Internet Research Agency, the Russian troll farm at the centre of Russia's interference in the 2016 US presidential election, reveals that one way the IRA operated was to use identities stolen from Americans. Using these accounts and other fake ones, the troll farm interacted

According to whistleblower Christopher Wylie, during the 2014 US midtern elections, Cambridge Analytica, needing data to complete the new products it had promised to political advisor Steve Bannon, harvested private information from the Facebook profiles of more than 50 million users without their

In March 2018, Facebook announced it was scrapping plans to show off new home products at its developer conference in May, in part because revelations about the use of internal advertising tools by Cambridge Analytica have angered the public. The new products were expected to include connected

Users downloading their Facebook histories have been startled to find that the company has been collecting call and SMS data. The company has responded by saying users are in control of what's uploaded to Facebook. However, the company also says it's a widely used practice when users first sign in

Behind the colourful bicycles and games rooms, Silicon Valley tech giants operate a strict code of secrecy, relying on a combination of cultural pressure, digital and physical surveillance, legal threats, and restricted stock to prevent and detect not only criminal activity and intellectual property

The accuracy of Facebook's ad targeting sometimes leads users to believe that Facebook is spying on them by tapping the microphones in their phones. Facebook has denied the practice - and is likely telling the truth because uploading and scanning the amount of audio data such a system would involve

In 2016, Facebook and its photo-sharing subsidiary Instagram rolled out a new reporting tool that lets users anonymously flag posts that suggest friends are threatening self-harm or suicide. The act of flagging the post triggers a message from Instagram to the user in question offering support

A former Facebook insider explains to Wired Magazine why it's almost certain that the Trump campaign's skill using the site's internal advertising infrastructure was more important in the 2016 US presidential election than Russia's troll farm was. The first was the ads auction; the second a little

Princeton University's WebTap - Web Transparency and Accountability - project conducts a monthly automated census of 1 million websites to measure tracking and privacy. The census detects and measures many or most of the known privacy violations researchers have found in the past: circumvention of

In 2017, Facebook introduced two mechanisms intended to give users greater transparency about its data practices: the "why am I seeing this?" button users can click to get an explanation of why they're being shown a particular ad, and an Ad Preferences page that shows users a list of attributes the