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PCs are under constant attack from viruses, spyware and identity theft. Every day you hear about a new threat to your PC. They're coming faster than ever before, they're getting harder to stop and traditional antivirus products are not able to keep up

Before virus are found in computer but now its going Mobile phone also. For this reason some leading company are providing anti-virus for mobile phone.

The product works like other antivirus software, spotting mobile threats using signatures. The software will protect mobile devices from new threats in "real time," as malicious code attempts to install itself on mobile devices. Users can also scan storage devices inserted into supported phones, or initiate scans of the mobile device manually.

New antivirus and Anti-spam signatures can be uploaded to the mobile device using GPRS (General Packet Radio Service), a wireless communication service for connecting mobile phones to the Internet that is common in third generation wireless (3G) devices. Alternatively, updates can be transferred using Microsoft's Activesync, he says.