Advancement of the Keyloggers
A keylogger is a program that runs in your computer’s background
secretly recording all your keystrokes. Once your keystrokes are logged, they are hidden away for later retrieval by the attacker. The attacker then carefully reviews the information in hopes of finding passwords or other information that would prove useful to them.
For example, a keylogger can easily obtain confidential emails and reveal them to any interested outside party willing to pay for the information. Keyloggers can be either software or hardware based
.Software-based keyloggers are easy to distribute and infect, but at the same time are more easily detectable.
Hardware-based keyloggers are more complex and harder to detect. For all that you know, your keyboard could have a keylogger chip attached and anything being typed is recorded into a flash memory sitting inside your keyboard. Keyloggers have become one of the most powerful applications used for gathering information in a world where encrypted traffic is becoming more and more common.