Protective Computing complements ISO/IEC 27001 by turning high-level security and availability goals into user-protective behavior claims with explicit boundaries.
| Protective control | ISO 27001 area | Translation | Evidence |
|---|---|---|---|
| No master keys / operator non-possession | Cryptography and access control | Requires public declaration that operators cannot decrypt user content through a hidden administrative path. | reference packet |
| Reversibility | Integrity and recoverability | Adds user-facing restore and bounded destructive actions to standard recoverability posture. | reversibility boundary table |
| Degraded Functionality | Availability and continuity | Narrows availability to essential-path survival under bandwidth, power, and input constraints. | degraded mode matrix |