Yam Data Breach

What happened

In June 2013, the Taiwanese website Yam.com suffered a data breach which was shared to a popular hacking forum in 2021. The data included 13 million unique email addresses alongside names, usernames, phone numbers, physical addresses, dates of birth and unsalted MD5 password hashes.

Exposed data

Recommended actions

• Change your Yam password immediately, and update it anywhere you reused the same password.
• Enable two-factor authentication on the affected account and on your critical services (email, banking).
• Watch for targeted phishing emails referencing Yam — attackers weaponise breach data quickly.
• Stay alert for smishing (SMS phishing) and SIM-swap attempts using your phone number.
• Exposed identity data raises identity-theft risk — consider credit monitoring or a credit freeze.