Last month, the contracts powering Magic Eden were exploited to the tune of millions of dollars. I was lucky enough to be in a position to rescue a good portion of that, but it highlighted the danger of leaving approvals open as adversaries get access to better and better tools for finding holes in contract logic. Today, Blur announced that they will be deprecating their frontend. I've investigated Blur and found no exploits within the current contracts. However, the Blur contracts are upgradable, meaning that they could turn malicious at any time. They currently have eight figures worth of NFTs approved to them. The safety of those NFTs effectively hinges on the opssec of the Blur team, which appears to be disbanding at this time. If you have open approvals to Blur, I recommend you remove them immediately. Use revoke.cash or similar to ensure that you are protected in case of a contract exploit or later upgrade. Don't wait. The time is now.