Checkout / web shop 1 hour 5 min Lost sales mount fast (Ch. 2) Customer database 4 hours 1 hour Serious, but less instant
The checkout in TB1 depends on the database in TB2, so if TB2 has an RTO of 4 hours, the 1-hour RTO requirement for TB1 cannot be met.
Undocumented security depends on specific people remembering specific things, and that breaks in three predictable ways: New staff cannot follow rules nobody wrote down; when a key person leaves, their knowledge leaves with them; and different people do the same task differently, which is another word for inconsistently.
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