OpenSea, the largest non-fungible token (NFT) marketplace that hit a high valuation of $13 Billion in January, has announced that 1.8 Million of its users may be affected by a data breach that could increase phishing and spam attempts.

OpenSea warns customers against phishing and hacking attacks

According to OpenSea's official blog post, an employee of the platform’s email delivery partner, Customer.io “misused their employee access to download and share email addresses" with an unauthorized external party.” These email addresses were provided by OpenSea users and newsletter subscribers.

“If you have shared your email with OpenSea in the past, you should assume you were impacted,” the company stated. This news was followed by a warning from OpenSea warning customers against potential phishing attacks. The company stated that hackers might impersonate OpenSea and may use similar domains for phishing and hacking purposes. The company also asked users to expect an increase in spam emails, phone calls and text messages according to users on Twitter.

This is far from being the first attack on OpenSea. In May, the company's Discord server was targeted by a hacker promoting a scam drop. Before this, in January an exploit led to Non Fungible Tokens (NFTs) being sold without permission and led to OpenSea having to reimburse $1.8 Million in loses.

OpenSea is just one of the many victims in the recent upsurge of cyberattacks within the crypto industry. In March, HubSpot was also a victim of a data breach that led to hackers stealing customer data from prominent crypto firms.