Stephanie Douse 
NFT marketplace Mintable is searching for the owners of three Azuki NFTs stolen from OpenSea users last week in a phishing attack.
After competing platform Mintable tracked down three non-fungible tokens (NFTs) taken from customers of NFT marketplace OpenSea, they will be refunded to their owners.
Mintable’s team was looking for Azuki NFTs on NFT marketplace LooksRare for its February Floor Buster flash sale when it came across and bought Azukis #1178, #4176, and #1180, according to a press release. Mintable stated in a statement that it “wishes to return them to their prior holders.”
The NFTs were part of a $1.75 million collection of NFTs taken from OpenSea customers on February 19, according to Mintable’s release.
Despite the fact that it was initially described as an exploit, OpenSea CEO Devin Finzer later tweeted that the users had been the victims of a phishing assault that “did not start” with OpenSea. The users had unwittingly “signed a malicious payload from an attacker, and some of their NFTs were stolen,” according to Finzer.
Difficult times for OpenSea
This isn’t the first time OpenSea users have lost significant digital assets this year. Opportunistic NFT collectors were able to purchase rare NFTs for considerably below their floor price because of an OpenSea exploit in January.
The exploit targeted “inactive listings” that hadn’t been properly canceled on that occasion, either because users didn’t want to pay the gas fees—or, in most cases, because they weren’t aware that the old listings had remained active.
As a result of the vulnerability, OpenSea users lost around $1.8 million in NFTs, which the NFT marketplace eventually reimbursed to them in Ether.
Timothy McKimmy, who lost his prized Bored Ape Yacht Club NFT in the January hack, filed a $1 million lawsuit against OpenSea last week. McKimmy claims that the NFT marketplace was aware of the flaw but chose not to shut it down or fix it in order to continue earning a 2.5 percent cut of every transaction.