If you are a practitioner, “patched” might refer to:
Authoritative information security models, including Confidentiality (Bell-LaPadula) and Integrity (Biba, Clark-Wilson) paradigms, define rules for system access, while modern approaches like Zero Trust emphasize constant verification [8, 5]. Patching is frequently modeled as a management process, involving optimization between security goals and the utilization of AI for vulnerability management [9, 14, 21]. Comprehensive guides on these topics are available in NIST SP 800-12r1 and NIST SP 1800-31. information security models pdf patched
(for the mathematical foundations).