One way to evaluate the security of a Web browser is to determine what percentage of its users are using the latest version. In a study released on Tuesday by S. Frei et al, it was found that Firefox users are most likely to be up to date. Now that modern software and hardware firewalls have blocked incoming intrusions via TCP/IP ports, the most favored method of attack on computers connected to the Internet is via data returned to the Web browser that exploits browser code or plug-in vulnerabilities. As a result, keeping the browser updated to the latest version these days is paramount.
