highsecurity

High security refers to the design, implementation, and operation of systems, facilities, and organizations to prevent unauthorized access, disclosure, alteration, and destruction of assets. It relies on layered defenses across physical, technical, and administrative controls, tuned to the asset's risk profile.

Physical security measures include controlled entry points, barriers, alarms, surveillance, and guards; technical security covers authentication, encryption, access control systems, monitoring, and intrusion detection; administrative controls entail policies, training, incident response, and ongoing risk assessment.

Key principles include defense-in-depth, least privilege, segmentation, and continuous evaluation. Security programs use risk assessments to determine appropriate controls and to drive audits and testing, such as penetration tests or red-team exercises.

Common standards and frameworks used to govern high-security programs include ISO/IEC 27001 for information security management, NIST SP 800-53 for control baselines, and sector-specific requirements such as PCI DSS. Physical security standards may reference local codes and industry best practices. Cryptographic modules often adhere to FIPS 140-2.

Applications span government facilities, financial institutions, data centers, critical infrastructure, research labs, and other high-value premises. Ongoing management includes certification, inspections, drills, incident response, and continuous improvement to adapt to evolving threats.

Challenges include cost, evolving attacker techniques, insider risk, supply chain vulnerabilities, and the need for regular testing and maintenance. High-security programs emphasize resilience and governance while recognizing that no system is completely risk-free.