A malware backdoor is a type of malicious software that secretly creates a hidden way for attackers to access a computer or network. Unlike typical hacking methods that exploit vulnerabilities, a backdoor is intentionally installed to bypass standard security measures. Once active, it allows unauthorized users to remotely control the affected system, steal data, install more malware, or manipulate files without the knowledge of the system’s owner. Malware backdoors are often used in targeted attacks and can remain undetected for long periods, making them particularly dangerous.