Cybersecurity services by layer, and the page that covers each
Most security problems belong to one layer: detecting an intruder, controlling what crosses the network edge, connecting users and branches safely, protecting identities and email, or keeping data recoverable. The table below maps each layer to the service that addresses it, so you can go straight to the detail you need.
| Layer | Problem it solves | Services |
|---|---|---|
| Detection and response | Spotting and containing an attacker who is already inside | SIEM and SOC, endpoint EDR/MDR/XDR, network detection and response, ransomware protection |
| Network and perimeter | Filtering what enters and leaves, and keeping public services online | next-generation firewalls, DNS security, web application security, DDoS protection |
| Connectivity and access | Linking branches and remote staff without flat, over-trusted networks | SD-WAN, SSE, SASE, zero trust and ZTNA |
| Identity and messaging | Stopping account takeover, phishing and domain spoofing | email security, DMARC, identity security, PAM, MFA, identity governance |
| Data and resilience | Preventing data leaks and recovering after an attack | DLP and CASB, air-gap backup, security hardening, VAPT, endpoint management, security awareness training |
Few organisations need everything at once. The layers overlap on purpose: if phishing gets past email security, MFA and EDR should still stop the attacker, and backups should still restore the data.









