Every day the virtual world see the birth of more malicious software, this may remain anti-viruses powerless before the discovery of all the malicious programs as they arise, where the operation to seize may extend from hours to months, depending on the quality of anti-viruses that we use. In the case of infection with a malicious program, the hacker can get all your important data which also include accounts online, through planting A keylogger. Keylogger is a malicious program enters the box of RAT (remote access trojan) , makes the hacker reach everything you type the keyboard, Depends of Type of keylogger, online keylogger or offline keylogger, for offline keylogger, it means that the hacker when planted malicious program in victim's computer it is not necessary to sitin front of his computer all the time in order to spy on data of the victims, all victim's keystrokes are stored and sent periodically to the hacker (either e-mail or to the client software that controls which the malicious program). Unlike online keylogger hacker requires that connects with the victim's computer and monitors all keystrokes made â€‹â€‹by him, so the hacker in the case if not in front of his computer, he can not spy on the victim. As it may sometimes, anti virus could not detected this malware, so the only solution is to encrypt keystrokes, even if there is the presence of a Keylogger in computer, the hackerd, each letter you press itbe will not be able to spy on what you type at the keyboard, because it is encrypt before that prints on the screen. for this purpose, We will use Zemana program to protect our computer from Keyloggers: Zemana Anti Logger : Freeware and strong at the same time, supports all applications because the program can encrypt all keyboard input to any program, including most of the browsers, Zemana AntiLogger supports Windows operating system Vista, Windows XP, Windows 7 and Windows 8. You can download for free from here: http://www.zemana.com/product/antilogger-free/overview/ Good Luck !