Virus attacks are the most elusive yet damaging of e-mail threats. Disguised as personal, professional or unsolicited e-mail, viruses cause havoc to networks worldwide on a daily basis. Networks are extremely vulnerable between the time of a virus outbreak and when an anti-virus signature is available. This window of vulnerability is often 24 hours or longer, causing destruction and vast costs. The complexity and speed of virus attacks is so overwhelming, typical point-product anti-virus solutions are not enough. A multi-layered approach is essential to virus protection for any organization.