A number of menstrual cycle-tracking apps are sharing sensitive personal data with Facebook, according to research from advocacy group Privacy International. Platforms such as MIA Fem and Maya send data regarding users' use of contraception, sexual activity, monthly period timings, symptoms and moods directly to the social media giant through its Software Development Kit, which collects data for targeted ads. The researchers found that Facebook has been collecting information about users since at least 2013, when it began using a tool called “Custom Audiences API” in an effort to target ads more effectively.
A number of menstrual cycle-tracking apps are sharing sensitive personal data with Facebook, according to research from advocacy group Privacy International. Platforms such as MIA Fem and Maya send data regarding users' use of contraception, sexual activity, monthly period timings, symptoms and moods directly to the social media giant through its Software Development Kit, which collects data for targeted ads. In response, Facebook has contacted the developers identified by Privacy International over potential violations of its terms of service, such as the requirement to transparently inform users about data-sharing practices.