failing closed

A form of fail closed — Of an access control system: to automatically block all traffic in the case of a failure. For example, an electronic safe becoming impossible to unlock in the event of a power outage.

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Meanings

verb
  1. gerundparticiplepresentpresent participle and gerund of fail closed
Cite this entry
APA

failing closed. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/failing%20closed

MLA

“failing closed.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/failing%20closed. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “failing closed,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/failing%20closed.

Source: failing closed on Wiktionary, CC BY-SA 4.0.