Yahoo CEO Marissa Mayer has known that Yahoo was investigating a serious data breach since July, but withheld the information from investors, regulators and acquirer Verizon until this week, according to Financial Times reporters.
"Marissa was aware absolutely — she was aware and involved when Peace surfaced this allegation in July," the FT reports, citing a person briefed on Yahoo's internal discussions.
"[She] was part of the investigation and conversation from the very beginning and along with the team every step of the evidentiary gatherin and analysis process. In fact, the key executive team has been engaged from the very beginning."
If that allegation proves to be true, Yahoo could find itself drawing the attention of the SEC, experts told the FT.