Quidd Data Breach

What happened

In 2019, online marketplace for trading stickers, cards, toys, and other collectibles Quidd suffered a data breach. The breach exposed almost 4 million users' email addresses, usernames and passwords stored as bcrypt hashes. The data was subsequently sold then redistributed extensively via hacking forums.

Exposed data

Recommended actions

• Change your Quidd 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 Quidd — attackers weaponise breach data quickly.
• Check whether your email address appears in this breach on haveibeenpwned.com.