What it is
Network Exposure Mapping is the process of identifying which internal services, ports, and systems are reachable from external networks, including the public internet. It provides visibility into unintended exposure caused by configuration changes, cloud deployments, or legacy infrastructure.
Why it matters
Many breaches begin with attackers discovering an exposed service that was never meant to be public. Without clear exposure mapping, organisations often underestimate what attackers can see, scan, or exploit from outside their perimeter.
How to reduce risk
- Continuously monitor externally reachable IPs and services.
- Review firewall, cloud security group, and routing changes.
- Decommission unused or legacy services.
- Validate exposure after infrastructure or DNS changes.