Date

May 24 2021

Canva Security Incident – May. 24, 2019

In May 2019 Australian graphic design tool website Canva suffered an attack that exposed email addresses, usernames, names, cities of residence, and salted and hashed with bcrypt passwords (for users not using social logins — around 61 million) of 137 million users. Canva says the hackers managed to view, but not steal, files with partial credit card and payment data.

The suspected culprit(s) — known as Gnosticplayers — contacted ZDNet to boast about the incident, saying that Canva had detected their attack and closed their data breach server. The attacker also claimed to have gained OAuth login tokens for users who signed in via Google.

The company confirmed the incident and subsequently notified users, prompted them to change passwords, and reset OAuth tokens. However, according to a later post by Canva, a list of approximately 4 million Canva accounts containing stolen user passwords was later decrypted and shared online, leading the company to invalidate unchanged passwords and notify users with unencrypted passwords in the list.

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