Keyloggers are programs or devices that log keystrokes. Keyloggers are dangerous because they specifically read out login data such as names and passwords, and transmit them to unauthorized third parties. This threatens the security of your e-mail passwords, social media accounts, and online banking data. Keyloggers like these are not only used by individual hackers, but also by investigative authorities and intelligence services to spy on confidential data. The term “keylogger” is often used synonymously with spyware. However, spyware is the generic term for malware that gets its hands on specific user information. The term “keylogger” is more defined, since it is only used to identify keystrokes.