NFT Marketplace OpenSea reports email data breach.
June 30, 2022
OpenSea reported that an employee of its email delivery vendor, Customer.io, misused their employee access to leak customers' email addresses.
Customer.io is responsible for managing OpenSea’s email newsletters and campaigns.
The NFT marketplace is working with Customer.io in their ongoing investigation, and has alerted the law enforcement about the incident.
OpenSea asked its customers to stay vigilant and be alert for any attempt to impersonate OpenSea via email.
Following the data breach, OpenSea customers reported an uptick in spam email, texts and calls.
Earlier in March, BlockFi, Swan Bitcoin, NYDIG, and Circle reported a data breach which was caused by Hubspot, a platform similar to Customer.io.
OpenSea warned its customers that spammers may try to contact them by using an email address that looks visually similar to their official domain name “OpenSea.io.’’