OpenSea reports data breach affecting users

OpenSea, the leading NFT marketplace, disclosed a data breach affecting user data.

An employee of our email vendor, https://t.co/6vM4WAcJal, misused their employee access to download & share email addresses with an unauthorized external party.

Email addresses provided to OpenSea by users or newsletter subscribers were impacted.https://t.co/Osb6qqkqZZ

— OpenSea (@opensea) June 30, 2022

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The breach stemmed from a misuse of access by an employee of Customer.io — the email-delivery service used by OpenSea.

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The worker transmitted NFT marketplace customers’ email addresses to a third party; OpenSea warned of potential phishing attempts.

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The platform said attackers could attempt to contact potential victims using an email address that closely resembles the official opensea.io domain.

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1) We will ONLY send you emails from the domain ‘https://t.co/3qvMZjxmDB.’ Be aware of attempts to impersonate OpenSea through slight variations of our domain name, like below: pic.twitter.com/2tvgC6g3kD

— OpenSea (@opensea) June 30, 2022

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The platform reported the incident to law enforcement.

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data breach affecting 8.2 million American users of the Cash App is believed to have occurred due to the fault of a former employee of the payments company Block.

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