FBI chief Robert Mueller has been banned from banking online by his wife after almost getting sucked in by an e-mail phishing scam.
Mueller's admission came on the same day his organisation revealed it had charged 100 people in connection with a phishing operation that stole around $1.5 million.
In a speech to the Commonwealth Club of California, the director revealed that he recently received an e-mail purporting to be from his bank that looked "perfectly legitimate" and asked for verification of some information.
Mueller began following the instructions before realising "this might not be such a good idea" and quickly changing all the family's passwords. He thought this would be the end of the matter, telling Mrs Mueller it was a "teachable moment".
She disagreed, replying: "It is not my teachable moment. However, it is our money. No more Internet banking for you!"
The FBI director admits he should have known better and retold the story in his speech to illustrate the importance of vigilance when it comes to cybercrime.
"Cybercrime is a nebulous concept. It is difficult to grasp intangible threats, and easy to dismiss them as unlikely to happen to you. So far, too little attention has been paid to cyber threats-and their consequences."
You can read the full text of the speech here.