Yahoo's Billion-User Database Reportedly Sold On the Dark Web for Just $300,000 - NYT (thenextweb.com)

An anonymous reader writes: As if 2016 wasn't shitty enough for Yahoo -- which admitted to two separate breaches that saw 500 million users' and then 1 billion users' details stolen by hackers -- the New York Times reports that a billion-user database was sold on the Dark Web last August for $300,000. That's according to Andrew Komarov, chief intelligence office at security firm InfoArmor. He told NYT that three buyers, including two prominent spammers and another who might be involved in espionage tactics purchased the entire database at the aforementioned price from a hacker group believed to based in Eastern Europe. It's lovely to know that it only costs $300,000 to be able to threaten a billion people's online existence -- which means each account is only worth $0.0003 to hackers who can ruin your life online in a matter of minutes. Yahoo also doesn't yet know who made off with all the data from the attack in 2013, which is said to be the largest breach of any company ever.

Comments

Just received this from Yahoo! yesterday

[The-Ixian]

We are writing to inform you about a data security issue that may involve your Yahoo account information. We have taken steps to secure your account and are working closely with law enforcement.

What Happened?

Law enforcement provided Yahoo in November 2016 with data files that a third party claimed was Yahoo user data. We analyzed this data with the assistance of outside forensic experts and found that it appears to be Yahoo user data. Based on further analysis of this data by the forensic experts, we believe an unauthorized third party, in August 2013, stole data associated with a broader set of user accounts, including yours. We have not been able to identify the intrusion associated with this theft. We believe this incident is likely distinct from the incident we disclosed on September 22, 2016.

What Information Was Involved?

The stolen user account information may have included names, email addresses, telephone numbers, dates of birth, hashed passwords (using MD5) and, in some cases, encrypted or unencrypted security questions and answers. Not all of these data elements may have been present for your account. The investigation indicates that the stolen information did not include passwords in clear text, payment card data, or bank account information. Payment card data and bank account information are not stored in the system we believe was affected.

What We Are Doing

We are taking action to protect our users:

• We are requiring potentially affected users to change their passwords.
• We invalidated unencrypted security questions and answers so that they cannot be used to access an account.
• We continuously enhance our safeguards and systems that detect and prevent unauthorized access to user accounts.

What You Can Do

We encourage you to follow these security recommendations:

• Change your passwords and security questions and answers for any other accounts on which you used the same or similar information used for your Yahoo account.
• Review all of your accounts for suspicious activity.
• Be cautious of any unsolicited communications that ask for your personal information or refer you to a web page asking for personal information.
• Avoid clicking on links or downloading attachments from suspicious emails.

Additionally, please consider using Yahoo Account Key, a simple authentication tool that eliminates the need to use a password on Yahoo altogether.

For More Information

For more information about this issue and our security resources, please visit the Yahoo Security Issues FAQs page available at https://yahoo.com/security-upd....

  Protecting your information is important to us and we work continuously to strengthen our defenses.

  Sincerely,

  Bob Lord
  Chief Information Security Officer
  Yahoo

Re:It's not a billion people...

[omnichad]

who puts in accurate info for DoB anyway

Just about everyone who is over 18 and doesn't have a place to keep a copy of all the fake information for account recovery.