An investigation has revealed that some popular menstruation apps are sending very personal data including when women last had sex to Facebook and other 3rd-party services without any user consent or knowledge. This data is shared via Facebook’s Software Development Kit (SDK), a set of software development tools that can be used to develop apps for a specific operating system.
Menstruation apps, most of them, don’t only help women track their periods but also collect information about health, sexual life, mood and more.
Apart from Facebook, it is not clear who the other 3rd-party services and partners are who get to receive the user data. Also, it is not clear if the data sent to Facebook and the 3rd party services is anonymized or not.
“The data of pregnant women is particularly valuable to advertisers: expecting parents are consumers who are likely to change to their purchasing habits. In the US for instance, an average person’s data is worth $0.10, while a pregnant woman’s will be $1.50,” reports Privacy International.