trojan horse
trojan

"We've got to give them a demonstration that we didn't fall for their trojan horse."

There is also an unrelated trojan horse by the same name.

Known as trojan horses, the programs pretend to be something useful, like a word processor or game board.

However, that's not going to help when a new and different trojan horse appears in the wild.

You do realize that we are discussing a trojan horse, not a virus, right?

He'd brought them into the castle himself and they'd turned out to be a trojan horse.

It could, of course, be a trojan horse for the big one anyway.

As with other trojan horses it uses a client and server.

I guess not because, as you point out, it's not a trojan horse.

Twelve Tricks is a trojan horse that first appeared around 1990.