Facebook Inc said on Tuesday that investigators have determined that hackers did not access other sites that use the social networking site's single sign-on.
The social network star -- which has weathered storms over privacy and data protection -- is now looking at cooler growth following a years-long breakneck pace.
Facebook adjusted the privacy settings on its service on Wednesday, giving users control over their personal information in fewer taps.
Facebook Inc said on Wednesday it would build a web page to allow users to see which Russian propaganda accounts they have liked or followed.
Twitter announced on Tuesday it would double the limit for tweets to 280 characters in a bid to draw in more users and boost engagement at the social network.
The days of Twitter Inc limiting messages to 140 characters, a signature of the social network since its launch in 2006.