A post on a dark web hacking forum has exposed four million user credentials that were taken from Quidd, an app designed for trading collectibles featuring popular brands, entertainment properties and fictional characters.
Risk-Based Security reported via a company blog post that its Data Breach Research discovered the pilfered data, which the forum is not selling but rather making available "in a non-restricted manner."
Affected data includes email addresses, usernames, and bcrypt-hashed passwords of 3,954,416 users, the blog post states. "One threat actor responded to the post stating that he has already cracked, or decrypted, nearly a million password hashes," the report continues.
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