Keyloggers

A purpose of a keylogger is to capture and send to its owner sensitive user information from a computer. This information usually includes passwords used to access different computer resources. A good protection against keyloggers is to use multi-factor authentication. Multi-factor authentication requires a password and a hardware that a person has.

Even so the password maybe known, it will be useless without hardware.

More sensitive data may require multi-factor authentication using biometrics of a person. Having MFA that requires biometrics is more expensive than having a physical device.

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