Data breach

In 2016, Danish researchers Emil Kirkegaard and Julius Daugbjerg Bjerrekær released a dataset onto the Open Science Framework that included details of almost 70,000 users of the online dating site OkCupid. The researchers created the dataset themselves by using software to scrape information from

In 2015, Chinese hackers stole sensitive information including social security numbers and residency, employment, educational, and medical histories concerning more than 21 million people from the US Office of Personnel Management. OPM houses this information about all federal employees along with

In 2016, Nguyen Phong Hoang, a security researcher in Kyoto, Japan demonstrated that the location of users of gay dating apps such as Grindr, Hornet, and Jack'd can be pinpointed even when they have turned on features intended to obscure it - a dangerous problem for those have not come out publicly

In March 2016, a hacker group identifying itself as Anonymous Philippines defaced the website of the Philippine Commission on the Elections (Comelec), leaving a message that accused Comelec of not doing enough to secure the voting machines due to be used in the general election the following month

The discovery in 2016 of previous hacker break-ins such as the 2013 theft of 360 million old MySpace accounts and the 2012 hack of LinkedIn suggest that although websites come and go and "linkrot" means web pages have a short half-life, user data lives on for a deceptively long time. This is

In a 2015 study of 79 apps listed in NHS England's Health Apps Library, which tests programs to ensure they meet standards of clinical and data safety, researchers at Imperial College London discovered that 70 of them sent personal data to associated online services and 23 sent that data without

In 2015, a data leak apparently linked to the new Uber partner app exposed the personal information of hundreds of drivers, including their Social Security numbers, scanned drivers' licences, tax forms, and other documents. The information was likely to have been available for at least a few hours

The payday lender Wonga announced in April 2017 that a data breach at the company affected an estimated 270,000 customers, 245,000 of them in the UK and the rest in Poland. The company sent those it thought were affected messages warning that it believed there may have been illegal and unauthorised

In 2017, a website run by the Jharkhand Directorate of Social Security leaked the personal details of over.1 million Aadhaar subscribers, most of them old age pensioners who had enabled automatic benefits payment into their bank accounts. Aadhaar is a 12-digit unique identification number issued to