- US warns 'significant number' of major businesses hit by Backoff malware
- Your living room is vulnerable to cyber attacks
- Three easy ways to separate work and play on the same PC
- Spammers top spoofing targets are still finance and travel industries
- Hold the phone: iMessage spam not all it's cracked up to be
In Pictures: 20 notorious worms, viruses and botnets
The earliest worms and viruses were created for geeky fun and did little harm - oh, how times have changed. Here are 20 worms, viruses and botnets that show the evolution of malware, from Creeper to Flame.