What’s your craziest cybersecurity story?

Our most crazy story is a property settlement we were about to do for over $1mil on a property within a SMSF. One of our advisers was corresponding with the client and conveyancer regarding paying the final settlement amount.
All of a sudden he noticed that the bank details had changed, after he had done the verbal check and authority a couple of days earlier.
Checked with the client and the conveyancer and it came out the clients emails had been compromised and if we hadn't done the 2nd lot of checking the settlement funds would have been paid to the hackers account.
Let's say the adviser lost sleep thinking about what could have happened if he hadn't picked it up.
The client is very grateful we have a secure checking system in place.
Unfortunately, we've had way too many incidences that are similar to this and it's happening far too often.