Today, electronic security systems are at the heart of organisational resilience. Video surveillance, access control, intrusion detection and centralised monitoring all rely on complex, interconnected IT infrastructures. In this environment, Maintaining Operational Conditions (MOC) and Maintaining Security Conditions (MCS) are essential to ensuring the availability, performance and cybersecurity of these critical systems. Without proactive maintenance and a robust cybersecurity strategy, security systems can become vulnerable, lose effectiveness or even be compromised by cyber threats, potentially affecting both security and business continuity.