Spoofing emails: The trickery costing businesses billions bbc.com

The email came in like any other, from the company chief executive to his finance officer.

"Hey, the deal is done. Please wire $8m to this account to finalise the acquisition ASAP. Needs to be done before the end of the day. Thanks."

The employee thought nothing of it and sent the funds over, ticking it off his list of jobs before heading home.

But alarm bells started to ring when the company that was being acquired called to ask why it had not received the money.