Cybersecurity should not be added after deployment.
Security controls built into every layer — network, identity, endpoint, application, data and backup — together with the monitoring and recovery capability to detect an event and restore service after one.
It must be incorporated into architecture, access control, segmentation, configuration, monitoring, backup and operations.
The architecture states where trust boundaries sit and which control enforces each one.
Security architecture may include:
Network controls limit what can reach a system and what a compromised system can reach next.
Network security capabilities may include:
Service accounts and administrative access are treated as carefully as user accounts, because they usually carry broader privileges.
Identity controls may include:
Monitoring is only useful for the sources actually connected to it, so the source list is part of the design.
Security monitoring may cover:
Recovery from a cyber event assumes the production environment, and possibly its credentials, cannot be trusted. Restoration therefore happens into an isolated environment first.
Cyber-recovery architecture should address:
Each layer has its own patch cadence and failure mode; the order and timing of updates is planned across them.
Patch management requires coordination across:
Patching must consider compatibility, downtime, testing and rollback.
Describe the requirement, the locations involved and where the project stands. We will respond with the technical questions that need answering first.