Stories accidentally reactivated a number of old user profiles Chairman Greg Blatt Chairman Greg Blatt at the company's IPO opening celebration. Photo: Andrew Burton/Getty Images

A "limited number" of users' profiles were mistakenly reactivated despite the fact that some accounts had been deactivated or deleted years ago, reports The Verge.

Why it matters: The hiccup highlights the legal gray area surrounding data retention policies, especially for social media and dating platforms, where users are encouraged to share as much sensitive personal information as possible.