The application uses Trend Micro's web reputation technology to prevent iPhone and iPod Touch users from visiting sites that may contain malware.
Legitimate websites are typically used by hackers to infect visitors' computers with Trojans designed to steal personal information.
Code hidden in legitimate websites emerged as the weapon of choice in 2008 for cyber-criminals to pass on malware to unsuspecting users.
The technology underlying the Smart Surfing tool enables it to link to the results of daily scans of more than five billion URL, e-mail and file queries.
The Smart Surfing tools give iPhone and iPod Touch users real-time protection against the latest web threats.