Network security study reveals 26,000 undetected malware samples

A two-month study has identified 26,000 unique malware samples that were completely undetected by existing anti-virus solutions.

The study by Palo Alto Networks found that web-based malware stays hidden for an average of 20 days before being detected, as opposed to five days for email-based malware, while 94 per cent of the undetected malware was delivered via web browsing or web proxies.