(Bloomberg) -- Yahoo! Inc. should face a U.S. Securities and Exchange Commission investigation into whether the Internet media company properly informed investors and the public about a massive data breach that it confirmed last week, Senator Mark Warner said in a letter to SEC Chair Mary Jo White.
Marissa Mayer, Yahoo’s chief executive officer, waited until last week to formally disclose that information on 500 million accounts had been compromised in the 2014 breach even though she’s known about it as early as July, wrote Warner, a Virginia Democrat and co-founder of the Senate Cybersecurity Caucus. He also questioned whether Yahoo also failed to give timely notification to Verizon Communications Inc., which announced plans to acquire the company’s core assets earlier this year.
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