Bronstein, Gewirtz & Grossman, LLC Announces Investigation of Yahoo! Inc. (YHOO) for the Largest Data Breach in History

NEW YORK, Dec. 15, 2016 /PRNewswire/ -- Attorney Advertising -- Bronstein, Gewirtz & Grossman, LLC is investigating Yahoo! Inc. ("Yahoo" or the "Company") (NASDAQ:YHOO) for another major cyber-attack. Yahoo! account users are advised to contact the firm for additional information: www.bgandg.com/yhoo3.

On December 14, 2016, Reuters reported that Yahoo's massive cyber-attack affected over 1 billion user accounts in August 2013, making it the largest data breach in history. This announcement of the August 2013 hack impacts twice as many accounts as the 2014 hack that was revealed in September. Following the announcement of the 2014 cyber-attack, Verizon Communication Inc announced that it might withdraw from an agreement to buy Yahoo's core internet business for $4.83 billion and said, "we will review the impact of this new development before reaching any final conclusions."

With news of the 2013 hack, Yahoo made all of its users reset their passwords, which following the announcement of the 2014 hack, Yahoo only recommended a password reset. Yahoo stated that it believes the hackers responsible for the previous breach were able to access Yahoo's proprietary code giving them the ability to forge "cookies" could allow hackers to get into accounts without passwords. Bruce Schneier, a cryptologist and reliable security expert said, "Yahoo badly screwed up," and "They weren't taking security seriously and that's now very clear. I would have trouble trusting Yahoo going forward."

Yahoo does not believe this hack related to the 2014 hack, but believes hackers may have accessed account users' names, e-mail addresses, telephone numbers, dates of birth, hashed passwords and encrypted or unencrypted security questions and answers.

Yahoo learned about the breach while examining company data that was handed over by law enforcement. Yahoo said that FireEye Inc's Mandiant unit and Aon Plc's Stroz Friedberg are now aiding the investigation.

If you have a Yahoo! account, you may have been affected by this breach. You can contact the firm at www.bgandg.com/yhoo3 or contact Peretz Bronstein or his Investor Relations Analyst, Yael Hurwitz of Bronstein, Gewirtz & Grossman, LLC: 212-697-6484. 

Bronstein, Gewirtz & Grossman, LLC is a corporate litigation boutique. Our primary expertise is the aggressive pursuit of litigation claims on behalf of our clients. In addition to representing institutions and other investor plaintiffs in class action security litigation, the firm's expertise includes general corporate and commercial litigation, as well as securities arbitration. Attorney advertising. Prior results do not guarantee similar outcomes.

Contact:
Bronstein, Gewirtz & Grossman, LLC
Peretz Bronstein or Yael Hurwitz
212-697-6484 | info@bgandg.com 

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SOURCE Bronstein, Gewirtz & Grossman, LLC