What Happened?
OpenSea, an NFT marketplace, has reported a data breach exposing 1.8 million email addresses. With this information, cybercriminals could target users with spam or phishing attempts to access additional personal information which could lead to identity theft.
What should I do about it?
If you are a user of OpenSea, be cautious of any email you receive with an address similar to 'OpenSea.io':
Only engage with emails from the exact domain 'opensea.io'
Never download anything from an OpenSea email
Carefully check the spelling of any URL links in an OpenSea email
Whether you have been affected by this specific breach or not, it is always important to update any software you use and change your passwords often. You can read more about the breach from OpenSea here.
Looks like NFT marketplaces may have the same issues as cybercurrency exchanges... basically, built by hobbyists to do one job and security is either weak or non-existent.