More Bad Publicity About USB Security

Cyber-security experts have dramatically called into question the safety and security of using USB to connect devices to computers.

Berlin-based researchers Karsten Nohl and Jakob Lell demonstrated how any USB device could be used to infect a computer without the user's knowledge.

The duo said there is no practical way to defend against the vulnerability.

The body responsible for the USB standard said manufacturers could build in extra security.

But Mr Nohl and Mr Lell said the technology was "critically flawed". (more with videos)