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An encryption backdoor is a technique in which a system security mechanism is bypassed undetectably to access a computer or its data. The backdoor access method is sometimes written by the programmer who develops a program.
An encryption backdoor is also known as a trapdoor.
Encryption backdoor threats increase when multiuser and networking operating systems are used by many organizations. In a login system, an encryption backdoorused for system access may be in the form of a hard-coded username and password.
A network administrator (NA) may intentionally create or install an encryption backdoor program for troubleshooting or other official use. Hackers use backdoors to install malicious software (malware) files or programs, modify code or detect files and gain system and/or data access. Even encryption backdoor installed by network administrators pose security risks because they provide a mechanism by which the system can be exploited if discovered.