We've read reports suggesting that Toyota's computer system can be hacked with a Bluetooth phone and given a virus, but the security firm F-Secure found that the Prius debunks the urban legend. A frozen screen display was about all the damage F-Secure could do with the phone. "We had to reboot our test systems several times as the Bluetooth systems died on us, while the Toyota Prius just kept going," said Jarno Niemela, a researcher at F-Secure's laboratory. So there has been no "real data" as far as automotive infections go. What if you say Lexus in the mirror three times?