Firewalls are network systems that block unknown programs and Internet processes into the system which is protected. Prevent any unknown user or program access to the system and therefore is not like the antivirus software. Antivirus software detects and removes programs that are infecting the system, while the firewall only blocks all access to the system being protected.
If you are not a heavy computer user, you may never have heard of spyware, malware or adware. Even if you’ve heard about it, you may have overlooked all the rumors about it. After all, no big deal, right? In fact, spyware is a serious problem. This software is designed to gather information about your financial and personal information, including all of your online activity. In the hands of a cybercriminal, this information may cause harm. People who do not know for certain is to use computers without software or hardware protection are so open to attack as a bank that does not lock the doors.