Let's be honest, everyone enjoys the occasional chain email, but we each know someone who insists on forwarding every hoax or iPhone giveaway they receive. Compounding the problem, phishing scams can be very sophisticated and hard to recognize.

Forwarding email messages may not seem like a security threat, but clicking on unidentified URLs or downloading unauthorized software can be, and it puts your network at risk to Trojan or malware attacks.

Though it may be time-intensive, it is critical that small businesses regularly conduct basic computer security training with employees. Educate your employees on the latest security issues, and teach them to correctly identify potential threats that can compromise your business.