Share this article
OpenSea Reports Email Data Breach
An employee at an outside contractor tasked with managing OpenSea email newsletters copied the list of customer emails and shared it with an outside party, OpenSea says.
By Sam Reynolds
Updated May 11, 2023, 5:38 p.m. Published Jun 30, 2022, 4:41 a.m.
Watch out for phishing emails, says OpenSea, after staff at the world’s largest non-fungible token (NFT) marketplace discovered that an employee of Customer.io, a platform for managing email newsletters and campaigns, leaked the list of OpenSea customers’ emails to an outside party.
- Email newsletter management platforms and Customer Relationship Management (CRM) software appear to be a weak spot for crypto firms as leaks of this data continue to happen at a high frequency.
- In March, Hubspot, a platform similar to Customer.io, was hacked, affecting BlockFi, Swan Bitcoin, NYDIG and Circle.
- Users of these platforms had their names, phone numbers and email addresses leaked to an outside party.
- OpenSea said malicious actors may try to contact OpenSea customers via emails from domains that look similar to OpenSea.io such as OpenSea.org or OpenSea.xyz
- On Twitter, OpenSea customers are complaining of an uptick in spam emails, calls and text messages.
STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters
More For You
What to know:
- As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
- GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
- Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.
More For You
Michael Saylor's Strategy Hangs on to Spot in Nasdaq 100 Index
The annual Nasdaq 100 rebalance saw six companies dropped and three new additions, with changes taking effect on December 22, but bitcoin treasury company Strategy hung onto its spot.
What to know:
- Strategy (MSTR) will remain in the Nasdaq 100 index despite a major reshuffle, which saw several household names dropped.
- The firm's business model, which involves stockpiling bitcoin, has drawn criticism from analysts and index providers, with MSCI considering excluding crypto treasury companies from its benchmarks.
- The Nasdaq 100 rebalance saw six companies dropped and three new additions, with changes taking effect on December 22, but Strategy's bitcoin-heavy strategy secured its spot.
Top Stories
