Recognises masking applied to one copy only
The same column masked in one place and in clear in another reachable copy.
Can AI do this?
Not settled yet The benchmark tested this, but the models' answers do not settle yet whether they master it. 0 of 4 models in the current benchmark master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 86% | Not shown |
| gemini-3.5-flash-lite | Low cost | 24% | Not shown |
| gpt-6-luna | Low cost | 85% | Not shown |
| claude-haiku-5-5 | Low cost | 84% | Not shown |
Mastered means a probability of at least 90% that the model has this knobit, estimated from its graded answers. “Not shown” means the answers do not settle it either way. How the models are tested.
What it looks like in practice
Expected result: The copy still in clear
How it is assessed: Flags the deficient case and passes the acceptable one. Deficient: MK-002 masks the PAN in card_txn_analytics; the Finance BI extract carries it in clear Acceptable: Every copy masked or tokenised
Also known as: Masking on one copy only
Related knobits
Builds on
All 20 knobits of Design access control.
Source: Review checklist 03-access-control, row 10 (27002 8.11; PCI 3.4)