SEC conducting probe into Yahoo security breaches

The US Securities and Exchange Commission is investigating a data breach at Yahoo that was disclosed earlier, the company said in a filing.

According to a November 2016 quarterly filing, Yahoo is "cooperating with federal, state and foreign" agencies, including the SEC , that were seeking information and documents about a "sec urity incident and related matters."

The SEC was investigating whether two massive data breaches at Yahoo should have been reported sooner to investors, The Wall Street Journal reported yesterday, citing people familiar with the matter.

Yahoo had been questioned as to when it knew about a 2014 cyber attack it announced in September that had exposed the email credentials of half a billion accounts.