US based company Facebook will today start alerting the 87 million users, including more than 5 lakh 60 thousand in India, whose data may have been compromised as the UK-based Cambridge Analytica pilfered

them through an app.Users will also have the opportunity to use the link to delete apps and prevent them from collecting more information. Facebook will send a detailed message at the top of users news feed, offering information on apps they use and the information they have shared with those apps.