Topic starter
24/10/2026 8:54 pm
TL;DR: Edge attacks are concentrating on VPNs, infrastructure sourcing and long-tail vulnerabilities, GreyNoise found after analyzing 2.97 billion sessions over 162 days in H2 2025. Internet-facing systems need behaviour-based detection because fresh IPs and residual old flaws can outrun reputation-only filtering.
Editorial analysis by NHI Mgmt Group, based on content published by GreyNoise: “2026 GreyNoise State of the Edge Report: Where Attacks Concentrate and Defenses Fall Short”.
By the numbers:
- GreyNoise analyzed 2.97 billion sessions over 162 days in H2 2025.
- 52% of remote code execution attempts came from IPs with no prior history in GreyNoise data.
Key questions
Q: Why do fresh attacker IPs make edge defence harder?
A: Fresh IPs break the assumption that threat intelligence will identify bad infrastructure before it is used.
Q: What breaks when patching focuses on individual CVEs instead of attack chains?
A: You can close a headline flaw and still leave the attacker’s next step open.
Q: How can security teams detect edge device exploitation?
A: Security teams detect edge device exploitation by monitoring internet-facing appliances for unexpected reboots, configuration changes, new admin accounts, and outbound connections that do not match normal management traffic.
Practitioner guidance
- Harden internet-facing remote access paths Review VPNs, firewalls and routers as privileged entry points, then verify MFA, posture checks, patch status and exposure on every externally reachable access path.
- Retire reputation-only blocking decisions Use exploit behaviour, request patterns and session anomalies as primary signals, because attacker infrastructure now turns over faster than static blocklists can age.
- Prioritise long-tail CVEs by reachability Rank exposed assets by exploitability and business criticality, then keep old but reachable vulnerabilities in the same remediation queue as current ones.
Bottom line: Edge systems are now a concentrated attack surface where VPNs, routers and AI endpoints attract disproportionate scanning and exploitation.
Glossary terms: Edge Exposure, Residential Proxy, Long-Tail Vulnerability, Behaviour-driven Detection
Explore further
View Full Forum → | NHI Foundation Course → | Our Services → | Read the full analysis →
This topic was modified 6 days ago by NHI Mgmt Group
25/10/2026 11:13 am
Edge exploitation is now an identity governance problem as much as a network problem. When a VPN gateway becomes the first trusted hop, authentication and remote access controls define the blast radius of compromise. That is why the concentration of targeting on GlobalProtect matters: it reflects where attackers expect privileged entry, not just where they expect software bugs. Security teams should treat remote access governance as part of identity architecture, not a standalone perimeter control.
A question worth separating out:
Q: How should teams judge the risk of residential IP abuse in credential attacks?
A: Treat residential source traffic as a meaningful abuse signal when it appears at scale, especially in spray or login-automation patterns. The question is not whether the IP looks familiar, but whether the session behaviour matches legitimate users and whether access controls can distinguish automated distributed abuse from normal demand.
👉 Read our full editorial: Edge exploitation is concentrating on VPNs, old CVEs and fresh bots
This post was modified 6 days ago by NHI Mgmt Group