During the second half of 2005, 80% of the top 50 malicious software threats had the potential to expose confidential data, Symantec studies conducted in the US show.
The vendor's upcoming release of Norton Confidential aims to restore confidence in conducting online transactions for the home user.
Norton Confidential will protect a user during any sensitive or confidential transaction they make online, such as Internet banking or shopping, the company says.
The software uses traditional block lists with advanced heuristic technology to protect consumers from previously undiscovered phishing attacks.
There will also be a Web site authentication component.
"When a consumer is communicating or transacting with a Web site, Norton Confidential transparently scans both the PC and the Web page for known or suspected fraudulent activity, providing immediate feedback so the consumer knows whether or not it is safe to proceed," says Patrick Evans, regional director of Symantec Africa.
Separate versions of Norton Confidential are scheduled to be available for users of the Windows operating system in September and the Macintosh operating system in October.

