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SterJo Portable Firewall PRO is a innovative security program designed to prevent intruders from accessing your network even if it is run from a USB drive. This way you protect your computer from any kind of unauthorized access that could damage your system. SterJo Portable Firewall is a very convenient way of keeping your PC from any hacks or breaches even without installing the software. Just run it on your PC or laptop and you are ready to go. The unit serves as the single entry point to your network and evaluate connections requests as they are received comparing them with each rule in the policy. This is advanced easy-to-use software with ability to watch for all ports on your system and block them if necessary.