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Yahoo Faces Massive Data Breach Class Action

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Santa Clara, CA: Yahoo is facing a data breach class action lawsuit filed by a user who claims the internet company was negligent in protecting its customers data. Earlier this week, Yahoo revealed it had been the target of a data breach which affected 1 billion users.

Filed by New York resident Amy Vail, the suit alleges negligence, breach of express and implied contract, and violation of California’s unfair competition law.

In a statement issued Wednesday, December 14, 2016, Yahoo stated it believes that in 2013 hackers stole personal information related to 1 billion of its users by hacking their email accounts. This incident is separate from a similar one which Yahoo made public in September. However, the lawsuit contends that Yahoo has said some of the activity from both data breaches may be connected to a single state-sponsored actor.

According to the suit, Yahoo does not know who took the information, and has been unable to identify the intrusion in which it was taken.

“As a result of defendant’s failure to maintain adequate security measures and timely security breach notifications, Yahoo users’ personal and private information has been repeatedly compromised and remains vulnerable. Further, Yahoo users have suffered an ascertainable loss in that they have had to undertake additional security measures, at their own expense, to minimize the risk of future data breaches,” the lawsuit states.

Yahoo revealed earlier this year that “state-sponsored actors” had hacked similar types of data from 500 million of its users in late 2014.

In a recent press release, Yahoo also noted that an investigation into the 2014 breach revealed the hackers' ability, in some cases, to fake online “cookies”, enabling them to access users’ accounts without a password.

Vail is represented by Lee Cirsch, Robert Friedl, and Trisha Monesi of Capstone Law APC. The suit is Vail v. Yahoo, case number 3:16-cv-07154, in the U.S. District Court for the Northern District of California.

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Reader Comments

Posted by

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would like to be added to the class action suit

Posted by

on
I would also be interested in being added to the lawsuit given that I've had my Yahoo account for many years.

Posted by

on
I hope it is not too late to be added. I received notice to change my password twice.

Posted by

on
I have had yahoo accounts forever when the attack occurred what a pain in the ass

Posted by

on
Please add me to the lawsuit. I have 2 yahoo accounts and just today received notice from them.

Posted by

on
Please add me to lawsuit and my husband, Reginald. We were notified by Yahoo after the fact that our personal accounts were hacked and our personal information was stolen. We were otified to change our password on several occasions. Every time we changed it, months later we would receive another notice regarding another hack. We had to change bank cards because of this hack/identity theft.

Posted by

on
please add me to this lawsuit I have had yahoo mail forever

Posted by

on
Please add me to this suit! Per the previous poster, "This lawsuit needs to include AT&T. People who have email accounts, such as myself, that are supplied by AT&T's Internet service, a service I might add that I pay for, have no recourse because Yahoo's infrastructure manages the accounts. There is yet no information about how AT&T intends to deal with these email accounts and what liability they have in not managing their supplier who is Yahoo."
I have credit cards attached as well as sensitive information attached to my email account.

Posted by

on
This lawsuit needs to include AT&T. People who have email accounts, such as myself, that are supplied by AT&T's Internet service, a service I might add that I pay for, have no recourse because Yahoo's infrastructure manages the accounts. There is yet no information about how AT&T intends to deal with these email accounts and what liability they have in not managing their supplier who is Yahoo.

Posted by

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Also keep in mind, if your Yahoo! account has been merged with ANY other email (e.g. Pac Bell, SBC, ATT) you are also a victim even if you don't have a Yahoo account. ATT merged their email processing with Yahoo and you cannot undo this unless you close the other account (that in my case, I pay for). Yahoo is keeping this part quiet, though.

Posted by

on
i want to join also

Posted by

on
This experience has been a complete nightmare discovering that my yahoo account has been hacked, with absolutely no help from Yahoo in solving the issue. I need a lawyer from Detroit,MI to contact and advise me on this dilemma I face.

Posted by

on
please add me to the suit i have a few yahoo accounts

Posted by

on
Yahoo account was hacked all personal data information was stolen.Corrupting,damaging files.Leaving me with Mental.Physically, Anguish also causing no source of income from my bank,stock account.I would like to join the Action class lawsuit against Yahoo-Than you.

Posted by

on
I believe these are the attorneys handling the case. You can use their contact us form. capstonelawyers.com/contact-us

Posted by

on
Please add me to the suit.

Posted by

on
I have 3 Yahoo accounts with sensitive information. Please add me to this Class Action Lawsuit

Posted by

on
Breech of contract with security. My personal information was supposed to be my business..I want to sign up for this class action lawsuit. Who is to know whether we still should he worried about it or not.

Posted by

on
I can I be added to this lawsuit. My husband, myself and daughter all have accounts which yahoo instructed us to change passwords due to possible breach of our accounts. We still have the possibility of someone having our information and that just totally scares me. We are constantly checking our credit and have placed all types of alert on whatever we can. They were negligent in knowing information that they failed to alert their customers to

Posted by

on
please ad me too this lawsuit please i had three accounts with yahoo. and was stated all three were hacked. i've had the three accounts for years.

Posted by

on
How is it that I was told that I need to pay for extra security for an account that isn't secure in the first place.

Posted by

on
I have 3 accounts attached to my Yahoo e-mail. All 3 contain sensitive data. Please add me to the lawsuit

Posted by

on
Please card me to this lawsuit ! My credit & debit card accounts were attached to this email and both were cleaned out !!!

Posted by

on
Please add me to this lawsuit.

Posted by

on
I have yahoo accounts I use as my main communication with regards to finances and other important data. The security breech puts much at risk and over a long period of time. Thank you for looking into this.

Posted by

on
I received the email to change my password because my account was more than likely hacked into.. Please add me to this lawsuit.

Posted by

on
I would like to be added to this lawsuit

Posted by

on
Add me to the Class Action Lawsuit

Posted by

on
Received notice from Yahoo of a data breech and possible loss of personal information.

Posted by

on
I have 3 Yahoo emails and i have been breached before and its not a good feeling.....i Pray that my info and others that have sent me infor in emails are safe....add me to the list please

Posted by

on
I received notice to change my password. I want to to be added in the suit.

Posted by

on
I wish to join these lawsuits Dec 25/ 16

Posted by

on
May I have more information about this please? Two of my accounts I have been having issues with. The companies contacted me saying my information may have been breached. One I cant seem to contact anyone from the site in person to discuss it. I was told I need to change my password. I did and I still dont have access to it. its not Yahoo but my email for those accounts is Yahoo. Thank You JT

Posted by

on
I'd like to be added to the class action lawsuits against Yahoo.

Posted by

on
I also received notice to change my password and after that keep check on banking data it could of been hacked. I want to join in the suit.

Posted by

on
Yahoo infringed /breech of contract.I received a notice from yahoo for notice of breech of contract.also. I would like to join this action against Yahoo.

Posted by

on
Add me to this breach of Class Action Lawsuit..thank you..

Posted by

on
I am fearful that my personal information has been leaked. What do I do.

Posted by

on
Ya

Posted by

on
Yahoo infringed /breech of contract.I received a notice from yahoo for notice of breech of contract. I would like to join this action against Yahoo.

Posted by

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Re 2 Data Breach Class Action Lawsuits - 9/24/16 Edward McMahon v Yahoo! Inc., Case #5:16-cv-05466, USDC, Northern District of California and Vail v. Yahoo! Inc., 3-16-cv-07154, USDC, Northern District of California, I WANT TO FILE MY PROOF OF CLAIM IN THESE 2 LAWSUITS. Can't find the information on line. Help me, please.

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