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Former CEO of Yahoo testifies before Congress

Former CEO of Yahoo testifies before Congress

"These thefts occurred during my tenure, and I want to sincerely apologize to each and every one of our users", Mayer said, according to CNet. Six months earlier, Yahoo was targeted for the second time in four years in an attack that compromised more than 3 billion email accounts.

One of those suspected hackers, Karim Baratov, has even been arrested and extradited to the US.

Although Mayer testified that the 2014 breach was state-sponsored, Yahoo still hasn't concluded who was responsible for the 2013 hack.

Yahoo only learned about the hack last November, when USA law enforcement presented the company with the stolen information, Mayer said.

'As we all have witnessed: no company, individual or even government agency is immune from these threats, ' Mayer said.

"Unfortunately, while all our measures helped Yahoo successfully defend against the barrage of attacks by both private and state-sponsored hackers, Russian agents intruded on our systems and stole our users' data".

Mayer is part of a long line of company executives and former executives who have made their way to Capitol Hill in recent years to explain how their company fell victim to a cyberattack.

U.S. Sen. John Thune (R-S.D.), chairman of the Committee on Commerce, Science, and Transportation, will convene a hearing titled "Protecting Consumers in the Era of Major Data Breaches", at approximately 10:00 a.m. on Wednesday, November 8, 2017, in room Dirksen 106. But- despite prodding from senators -Equifax CEO Paulino do Rego Barros Jr. did not agree to stop use of controversial artibration agreements, nor did he commit Equifax to doing personalized outreach, free credit monitoring, or extended benefits to veterans. Its chief security officer now reports directly to the CEO, and a new chief transformation officer is overseeing the firm's broader response. Equifax's CEO said the same of a breach involving 145 mln consumers.

He said a federal law should replace that patchwork of laws.

They criticised the payouts to top executives after the breaches and asked about more secure ways to identify people than relying on their Social Security number. "Not fines, or other penalties - or real deterrents", said Connecticut Sen.

But under questioning from the Senate Commerce Committee, she also admitted that Yahoo still doesn't know exactly how hackers managed to steal the usernames and passwords of all of its registered users.