Here is one of the ICOs I participated in, right before it launched the mailing list was hacked and everyone got an email with the wrong Ethereum address to send tokens to. Fortunately, I never got scammed although tbh it wouldn't have made a difference because the tokens are worth f.uck all now.

https://www.coindesk.com/bee-token-phishing-scam

And one time another colleague accidentally sent 3 ETH to the wrong address. No chance of getting it back

it would have been about $900 per ETH at the time too