Free Computer Vulnerability Tests

Free Computer Vulnerability Tests
These services test whether your computer is open for attacks from other computers connected to the Internet through a process called 'port scan'.

You can protect your computer against these attacks through a firewall.

Broadband Port scanInstant online security analysis of your computer through a Java applet which runs in your browser.

Shields Up!Shields Up! tests your computer for vulnerabilities from outside attacks through the Internet. You do not need to install anything.