OpenSea disclosed a data breach on Wednesday and notified users of phishing attacks that could target them in the coming days.
The online NFT marketplace says it has more than 600,000 users and a transaction volume that surpassed $20 billion.
A staff at Customer.io, an email vendor contracted by OpenSea, misused their employee access to download and share email addresses of OpenSea’s users and newsletter subscribers with an unauthorised external party, the world’s largest NFT marketplace said Wednesday night.
The scale of the security breach appears massive. “If you have shared your email with OpenSea in the past, you should assume you were impacted,” the company said, adding that it’s working with Customer.io in an ongoing investigation and has reported the incident to law enforcement.
But since this is crypto, it's near-certain that almost every OpenSea user will start receiving phishing emails with the idea to impersonate OpenSea and get them to install malware or pass over their cryptocurrency private keys.
The company says it is assisting Customer.io with its investigation and has reported the incident to law enforcement.
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