Smashing Security podcast #468: High-speed train hacks and homicidal lawnmowers

A 23-year-old radio enthusiast spent £300 on a piece of kit from the internet, and used it to bring four packed high-speed trains to a screeching halt. His defence in court? Possibly the most creative excuse we've heard all year. Meanwhile, owners of $4,000 robot lawnmowers are discovering that thei