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Word of the Day Wednesday, June 10, 2026

backdoor

/bækˈdɔːr/ noun, verb · British & US
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What does backdoor mean?

noun, verb

A backdoor is a hidden way of accessing a computer system or network, often used by administrators for maintenance or by hackers for unauthorized access. It can also refer to a secret or unofficial entrance or exit.

Example

"The company installed a backdoor in the software to allow remote access for troubleshooting purposes."

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymologically related

Synonyms for backdoor

Antonyms of backdoor

Rhymes with backdoor