OpenSea Reports Stolen Email Addresses in Data Breach, Warns Users About Phishing Possibility

OpenSea has disclosed that it has suffered a data breach, and the email addresses of its users could become subject to phishing attacks.

OpenSea, the world’s largest non-fungible token (NFT) marketplace, has disclosed that it has suffered a data breach, and the email addresses of its users could become subject to phishing attacks. 

Emails Stolen in OpenSea Data Breach

On Wednesday, June 28, OpenSea flagged a data breach through its email vendor The NFT marketplace reported that “email addresses provided to OpenSea by users or newsletter subscribers were impacted.”


According to OpenSea, a staff member at, an email vendor contracted by OpenSea, misused their employee access to download and share the email addresses of OpenSea’s users and newsletter subscribers.

OpenSea Warns About Possible Phishing Attacks

With OpenSea unsure of the scale of the data breach, they have warned people who had shared their email addresses with OpenSea in the past to assume that they were impacted. 

OpenSea adds that the impacted email address could receive emails from the domain ‘’ OpenSea warns that mail from this domain is from malicious actors who may use this information to impersonate OpenSea in email phishing attempts.

  • OpenSea says it has opened an investigation into the matter and has reported the data breach to law enforcement.

Why You Should Care

OpenSea will only send emails from the domain “” As such, users should delete emails from,, and, among others.

Read about other recent OpenSea breaches below:


Former OpenSea product manager charged with NFT insider trading

On the upside, OpenSea has made the following updates:

OpenSea launches on Seaport to improve NFT trading quality

This article is for information purposes only and should not be considered trading or investment advice. Nothing herein shall be construed as financial, legal, or tax advice. Trading forex, cryptocurrencies, and CFDs pose a considerable risk of loss.

Milko Trajcevski

Milko Trajcevski is a DailyCoin news reporter, mainly focused on Ethereum (ETH), Cardano (ADA), and their founders (Vitalik Buterin and Charles Hoskinson). Milko is an avid follower of crypto and blockchain technology and has written thousands of articles on the subjects. He finds joy in transforming complex issues into written content that anyone can understand. Milko has used and analyzed numerous exchanges, such as Coinbase, FTX, and Binance. He also closely follows all of the latest news around the largest decentralized exchanges (DEXs). Location: Skopje, Macedonia