Advertising

In 2014, a team of four Swedish and Polish researchers began scraping every comment and interaction from 160 public Facebook pages. By two years later, they had collected one of the largest sets of user data ever assembled from the social network; it enabled them to track the behaviour of 368

In December 2014 researchers at Malwarebytes discovered that for two months an Adobe Flash player zero-day exploit with a ransomware payload was embedded in online ads placed by a leading advertising network. The attack ended when Adobe patched Flash to close the vulnerability on February 2, 2015

In 2018, a group of researchers from the Campaign for Accountability posed as Russian trolls and were able to purchase divisive online ads and target them at Americans using Google's advertising platform. The researchers constructed fake profiles using the name and identifying details of the

In October 2018, in the wake of the Cambridge Analytica scandal and questions over Facebook's influence on the UK's EU referendum, Facebook announced it would add Britain to the US and Brazil on the list of countries where the company will no longer allow political groups to publish "dark" ads on

In the run-up to the US 2018 mid-term elections, Facebook announced it would broaden the company's policies against voter suppression by banning misrepresentations about how to vote and whether a vote will be counted. The company also introduced a reporting option to allow users to report incorrect

In September 2018, researchers discovered that websites accessed via mobile phones could access an array of device sensors, unlike apps, which request permissions for such access. The researchers found that 3,695 of the top 100,000 websites incorporate scripts that tap into one or more sensors

In October 2018 Amazon patented a new version of its Alexa virtual assistant that would analyse speech to identify signs of illness or emotion and offer to sell remedies. The patent also envisions using the technology to target ads. Although the company may never exploit the patent, the NHS had

In 2018, the British army used paid Facebook messages to target 16-year-olds around the day GCSE results were announced to suggest that an army career might still be open to them if their grades were sub-par. The move was criticised for targeting teenagers at their most vulnerable and stressed

In 2017, the Massachusetts attorney general's office reached an agreement under which Boston-based Copley Advertising agreed to eschew sending mobile ads to patients visiting Planned Parenthood and other health clinics. In 2015, Copley's geofencing technique used location information from

In 2018, the digital marketing company Tell All Digital began marketing technology to personal injury law firms to enable them to send mobile ads to patients they know are waiting for treatment in an emergency room and for up to a month afterwards. The technology relies on geofencing, a technique

In 2018, the French company Criteo formed a partnership with AgilOne to identify and link customer behaviour across multiple online and offline channels. The service is intended to make the ads consumers see more relevant, but also stop showing them ads for products they've already bought in offline

DoubleClick was one of the first companies set up to sell display advertising on the web. Set up in 1996, it went public in 1998, and in 1999 merged with the data collection company Abacus Direct. In response to a 2001 US Federal Trade Commission investigation of the proposed merger, DoubleClick

In 2017 the Electronic Privacy Information Center filed a complaint with the US Federal Trade Commission asking the agency to block Google's Store Sales Measurement service, which the company introduced in May at the 2017 Google Marketing Next event. Google's stated goal was to link offline sales to

When Google launched Gmail in 2004, the new service rapidly gained acceptance because it offered far more storage space than any other comparable service. From the beginning, however, Gmail scanned the contents of emails to help the company generate contextual ads. Scanning has never applied to the

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

Car companies have long collected data about the consumers who buy their cars. Now, they hope to aggregate and sell customer preferences to outside vendors for marketing purposes much as online tech giants like Google and Facebook already do. The companies say that exploiting this data will help