SpyShelter does not rely on an antivirus signature database, because our software understands how malware works. SpyShelter protects you from both known and uknown threats, which were not discovered by antivirus labs yet. SpyShelter’s Graphic User Interface(GUI) design allows for a quick access to all of the application’s unique features and settings. Fast algorithm processing does not slow down your computer while scanning for dangerous elements. In fact, SpyShelter’s proactive defense is so light, that you will not experience any difference in your PC performance.