Chapter 4
Why your current security stack has a blind spot
Most enterprise programmes assume a perimeter: threats come from outside and are detected as they cross the boundary. SIEM aggregates logs. NDR watches east-west traffic. EDR watches endpoints. All are essential.
They share one structural limit: they only see inside your environment. They cannot see underground marketplaces, criminal forums, Telegram channels, or leak databases where your employees' credentials are sold right now.
An infostealer on a personal laptop outside EDR coverage leaves no trace in your SIEM. A stolen session token from a contractor's home PC may not trip NDR. The first time tooling screams may be when the attacker is already inside with valid credentials.
That is not a failure of those products — it is a coverage gap no amount of tuning closes. The threat lives outside the perimeter; DvaraIntel-class digital risk intelligence is how you extend visibility there.
SIEM, NDR, and EDR operate within your four walls. They cannot see what actors say about your organisation, which corporate credentials are listed, or which accounts were compromised on unmanaged devices. External monitoring fills the gap.