Facebook believes that the hackers who gained entry to non-public data of some 30 million customers on the location had been spammers trying to generate income by means of misleading promoting, the Wall Street Journal reported on Wednesday.
a hack in September allowed attackers to harvest thousands and thousands of telephone numbers and e mail addresses. It first disclosed the breach late final month.
The firm mentioned hackers used 400,000 accounts beneath their management to steal entry tokens of round 30 million Facebook customers. Access tokens are used to log into Facebook accounts with no need to kind in a password.
Facebook’s vice chairman of product administration, Guy Rosen, mentioned in a blog post that the corporate noticed an “unusual spike of activity” that began on Sept. 14, which prompted an investigation. On Sept. 25, Facebook decided that the surge was really an assault and moved to repair the vulnerability.