OpenSea Email Leak Exposes Over 7 Million Addresses to Public

Over seven million email addresses from a 2022 OpenSea breach have been leaked publicly, increasing the risk of phishing and scams. This information was revealed by SlowMist’s Chief Information Security Officer on January 13.

The breach occurred in June 2022 when an employee of Customer.io accessed and shared users' emails without authorization.
OpenSea had already informed users to consider their data compromised following the incident.
The leak now includes emails from notable figures and companies in the crypto sector, raising concerns about targeted phishing attacks.
Previous breaches, such as the 2020 Ledger incident, highlight ongoing data security challenges in the cryptocurrency industry.
Cybersecurity firm CertiK reported over $1 billion lost to phishing scams in 2024.
More than 250 breaches or leaks affected major platforms like https://holder.io/coins/binance/, Crypto.com, and eToro in the first half of 2024.

SlowMist's 23pds recommends users create strong passwords and stay alert for unsolicited communications to mitigate risks.