World's largest NFT market OpenSea hacked

World's largest NFT marketplace OpenSea is investigating a “phishing attack”, OpenSea acknowledged on Twitter.

We are actively investigating rumors of an exploit associated with OpenSea related smart contracts. This appears to be a phishing attack originating outside of OpenSea's website. Do not click links outside of https://t.co/3qvMZjxmDB.

— OpenSea (@opensea) February 20, 2022

Co-founder Devin Finzer took to twitter to share some information and allay fears.

I know you’re all worried. We’re running an all hands on deck investigation, but I want to take a minute to share the facts as I see them:

— Devin Finzer (dfinzer.eth) (@dfinzer) February 20, 2022

“We don’t believe it’s connected to the OpenSea website, it appears 32 users thus far have signed a malicious payload from an attacker, and some of their NFTs were stolen," Finzer wrote on Twitter.

"The attack doesn’t appear to be active at this point — we haven’t seen any malicious activity from the attacker’s account in 2 hours. Some of the NFTs have been returned," Finzer added.

Finzer warned users about signing messages and asked them to always 'double check that you are interacting with https://opensea.io in your browser when you sign messages.'

He also dismissed rumors of a $200 million hack and asked affected users to DM @opensea_support so that they can thoroughly investigate.

If you are an affected user, please DM @opensea_support so that we can thoroughly investigate — we’d love your help.

— Devin Finzer (dfinzer.eth) (@dfinzer) February 20, 2022