Star (*) Security Property
Also called: * Security Property, no write down
Course: AP® Cybersecurity Shows up in: Unit 5: Securing Applications and Data
The Bell-LaPadula rule that a subject may not write to objects below its own security level, so secrets cannot leak downward.
Appears in the course and exam description (CED): 5.2.C.6
Why it matters in Unit 5
It stops a user with a high clearance from copying sensitive data into a lower-level file.
Example
A user cleared for Secret cannot save notes into an Unclassified folder.
Learn it properly, with a checkpoint 5.2 Protecting Applications and Data: Managerial Controls and Access Controls