Yahoo sued for gross negligence over huge hacking

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Yahoo is sued for data breach

Internet giant Yahoo was sued on Friday by a user who accused it of gross negligence over a massive 2014 hacking in which information was stolen from at least 500 million accounts.

The lawsuit was filed in the federal court in San Jose, California, one day after Yahoo disclosed the hacking, unprecedented in size, by what it believed was a “state-sponsored actor.”

Ronald Schwartz, a New York resident, sued on behalf of all Yahoo users in the United States whose personal information was compromised. The lawsuit seeks class-action status and unspecified damages.

A Yahoo spokeswoman said the Sunnyvale, California-based company does not discuss pending litigation.

The attack could complicate Chief Executive Marissa Mayer’s effort to shore up the website’s flagging fortunes, two months after she agreed to a $4.8 billion (£3.7b) sale of Yahoo’s Internet business to Verizon Communications.

On Thursday, Yahoo said user information including names, email addresses, phone numbers, birth dates and encrypted passwords had been compromised in late 2014.

But the lawsuit suggested that the breach might have been warded off had Yahoo, having been targeted by hackers before, lived up to its promise of taking user privacy “seriously” and bulked up its security measures.

yahoo data breach

It also faulted Yahoo for taking roughly three times longer than organizations typically need to uncover the breach.

Yahoo demonstrated “reckless disregard for the security of its users’ personal information that it promised to protect,” according to the complaint.

Mr Schwartz is represented by two large US class-action specialists, the law firms Robbins Geller Rudman & Dowd and Labaton Sucharow.

In Britain eight million users have been urged on Friday to change their internet passwords after the information commissioner confirmed they were affected by the cyber attack.

The commissioner, who could levy fines of up to £500,000 against the company for not protecting its customers’ information, described the data loss as “staggering” and warned companies that it is their responsibility to make theft “impossible” for cyber criminals.

Yahoo is the latest in a growing list of popular social sites to fall victim to a cyber attack. Myspace found up to 427m of its users’ information up for sale on the dark web earlier this year, mostly likely the result of a hack before its redesign in 2013.

LinkedIn accounts for 117m users that were stolen in 2011 were put up for sale in May, as were 65 million emails from the social blogging website Tumblr.