Data breach at media sharing app Timehop exposes 21 million users

The company is advising users “take additional security precautions” with their cellular providers to avoid porting a process by which hackers can gain control of one’s phone services and use it to get past added security measures on financial accounts and logins. Timehop is currently working with local and federal enforcement officials to investigate the security breach. Founded in 2011, Timehop collects old posts social media sites like Facebook, Twitter, and Instagram and resurfaces them on the same day of original posting.