A virus can strike your network when you least expect it. The data that it destroys or corrupts can wreak havoc on your organization and can have a major financial impact on your bottom line. Your best defense is to keep your antivirus software, Operating System and Java software updated regularly. Microsoft releases updates and patches on the 2nd Tuesday of each month. Antivirus and other software should be checked weekly for updates. The likelihood of a virus strike can be diminished if the individuals in your organization are trained not to download files from unsecured websites, or open unknown attachments to emails. Finally, it is important to regularly evaluate the integrity of your firewall and the policies.