# password (security)

a code that let access

- Computed level: L11 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: technology  ·  Arena: EmergenceLexicon

## Emergence
**Emerges from:** [code](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-code.information), [key](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-key.tool), [security](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-security.safety), [access](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-access.entry)

**Through:** the code and tool let user access

**Novel properties:**
- secret verification
- access control

## Examples
- In 2013, Adobe stored 153 million user passwords encrypted with a weak cipher, leading to mass exposure after breach. *(computing)*
- The Vatican's Secret Archives require a physical key and a memorized passphrase for entry, both held by separate custodians. *(institutions)*
- ATM PINs in Japan are typically four digits, limiting combinations to 10,000 possible codes per card. *(everyday life)*

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*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-password.security*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-password.security.json*  
*Every definition provably resolves to space, time, energy and pattern.*