Glossary

Backdoor

A backdoor is a covert method of bypassing normal authentication or encryption in a computer system, software, or network.

It allows unauthorised access to the system without the user’s knowledge. Backdoors can be intentionally created by developers for legitimate purposes, such as troubleshooting or providing remote access, but they can also be installed maliciously by attackers.

Malicious backdoors are often introduced through malware, exploiting vulnerabilities in the system. Once installed, they enable attackers to gain unauthorised control, steal data, or execute commands remotely.

Types of backdoors include:

  • Hardware Backdoors: Built into hardware devices.
  • Software Backdoors: Hidden in software applications or operating systems.
  • Network Backdoors: Embedded in network devices or protocols.

Detecting and removing backdoors can be challenging, as they are designed to be stealthy and persistent. Protecting against backdoors involves regular security audits, updates, and employing comprehensive cybersecurity measures to detect unusual activity.

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