A backdoor is a typically covert method of bypassing normal authentication or encryption in a computer, product, embedded device, or its embodiment. Backdoors are most often used for securing remote access to a computer, or obtaining access to plaintext in cryptographic systems.

What does it mean to backdoor someone?

verb To use deceitful, duplicitous, or morally questionable means to circumvent someone's authority, influence, or integrity for the sake of one's personal gains. Government agents tried to backdoor the activist by planting discrediting information about her in newspapers.

What does shut the backdoor mean in slang?

phrase. If you say that someone gets or does something by the back door or through the back door, you are criticizing them for doing it secretly and unofficially.