Yahoo Confirms Massive Data Breach, 500 Million Users Impacted

sec_monkey · Sep 22, 2016

Yahoo Confirms Massive Data Breach, 500 Million Users Impacted

SUNNYVALE, Calif.--(BUSINESS WIRE)--A recent investigation by Yahoo! Inc. (NASDAQ:YHOO) has confirmed that a copy of certain user account information was stolen from the company’s network in late 2014 by what it believes is a state-sponsored actor. The account information may have included names, email addresses, telephone numbers, dates of birth, hashed passwords (the vast majority with bcrypt) and, in some cases, encrypted or unencrypted security questions and answers. The ongoing investigation suggests that stolen information did not include unprotected passwords, payment card data, or bank account information; payment card data and bank account information are not stored in the system that the investigation has found to be affected. Based on the ongoing investigation, Yahoo believes that information associated with at least 500 million user accounts was stolen and the investigation has found no evidence that the state-sponsored actor is currently in Yahoo’s network. Yahoo is working closely with law enforcement on this matter.

Yahoo is notifying potentially affected users and has taken steps to secure their accounts. These steps include invalidating unencrypted security questions and answers so that they cannot be used to access an account and asking potentially affected users to change their passwords. Yahoo is also recommending that users who haven’t changed their passwords since 2014 do so.

Yahoo encourages users to review their online accounts for suspicious activity and to change their password and security questions and answers for any other accounts on which they use the same or similar information used for their Yahoo account. The company further recommends that users avoid clicking on links or downloading attachments from suspicious emails and that they be cautious of unsolicited communications that ask for personal information. Additionally, Yahoo asks users to consider using Yahoo Account Key, a simple authentication tool that eliminates the need to use a password altogether.

Online intrusions and thefts by state-sponsored actors have become increasingly common across the technology industry. Yahoo and other companies have launched programs to detect and notify users when a company strongly suspects that a state-sponsored actor has targeted an account. Since the inception of Yahoo’s program in December 2015, independent of the recent investigation, approximately 10,000 users have received such a notice.

Additional information will be available on the Yahoo Security Issue FAQs page, https://yahoo.com/security-update, beginning at 11:30 am Pacific Daylight Time (PDT) on September 22, 2016.
Click to expand...

An Important Message to Yahoo Users on Security | Business Wire

chimo · Sep 22, 2016

2 years after the crack

Yard Dart · Sep 22, 2016

Nothing like timely notification of an issue..... LOL!!

GOG · Oct 10, 2016

My email was hacked. My password was changed and the verification question was changed as well. I've gotten zero response from yahoo and unbelievable as it is, they don't have a customer service phone number. I jumped through all the FAQ help stuff and it all boils down to: You're screwed, we don't care, we're fucking yahoo. Open a new account and stop bothering us.

Nice.

Log in or Sign up

Yahoo Confirms Massive Data Breach, 500 Million Users Impacted

sec_monkey SM Security Administrator

chimo the few, the proud, the jarhead monkey crowd

Yard Dart Vigilant Monkey Moderator

GOG Free American Monkey

Log in or Sign up

Yahoo Confirms Massive Data Breach, 500 Million Users Impacted

sec_monkey SM Security Administrator

chimo the few, the proud, the jarhead monkey crowd

Yard Dart Vigilant Monkey Moderator

GOG Free American Monkey

Useful Searches