just saw this and it's pretty wild—the polkadot cross-chain bridge attack from a while back, the hackers literally moved all $269k straight into tornado cash. like, they weren't even trying to hide it at that point. makes you wonder how many other protocols out there have similar vulnerabilities that haven't been caught yet. nano labs and other security teams really need to step up their game on these audits. this is exactly why you can't just trust any bridge without serious vetting. the whole cross-chain space feels like it's still figuring out how to do this safely.