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11/07/2026 8:26 pm
TL;DR: Vulnerability exploitation now accounts for 20% of breaches, credential abuse remains the top entry point, and third-party involvement in breaches doubled in the last year, according to Zero Networks and Verizon DBIR. The real lesson is that network weaknesses, trusted integrations, and over-privileged identities now blur together, so containment must be identity-aware, not perimeter-only.
NHIMG editorial — based on content published by Zero Networks: Top Cyber Risks in 2026: How to Avoid Hidden Network Vulnerabilities
By the numbers:
- Vulnerability exploitation now serves as the initial access vector for 20% of all breaches, rising 34% year-over-year.
- Over 90% of security leaders express concern about VPNs leading to a security breach.
- 56% of organizations experienced at least one VPN-related cyberattack in the last year.
Questions worth separating out
Q: What breaks when VPN access is treated as trusted after login?
A: Broad VPN trust breaks containment.
Q: Why do over-privileged service accounts make hidden network flaws worse?
A: Over-privileged service accounts turn a single application compromise into a wider identity event.
Q: How do security teams know whether segmentation is actually reducing breach spread?
A: Look for containment evidence, not just policy existence.
Practitioner guidance
- Map trusted access paths to post-authentication reach Document what every VPN, RMM, token, and admin plane can reach after login or delegation succeeds.
- Segment management planes from production systems Place firewalls, hypervisors, RMM consoles, and identity infrastructure on separate administrative paths with restricted connectivity.
- Reduce machine identity blast radius Inventory service accounts, OAuth tokens, API keys, and embedded secrets that can traverse applications and back-end services.
What's in the full article
Zero Networks's full analysis covers the operational detail this post intentionally leaves for the source:
- Per-threat breakdowns of VPN, firewall, RMM, hypervisor, cloud app, and identity attack paths.
- Concrete containment guidance for microsegmentation and identity segmentation in mixed environments.
- Examples of specific exploit families and breach patterns that illustrate the control gaps.
- Operational resilience tips for reducing lateral movement after initial access.
👉 Read Zero Networks' analysis of hidden network vulnerabilities in 2026 →
Hidden network vulnerabilities in 2026: where identity controls fail?
Explore further
11/07/2026 8:56 pm
Identity trust expansion is now the common failure mode behind many hidden network vulnerabilities. The article's examples show that attackers do not need a new exploit class when they can abuse VPN sessions, OAuth tokens, RMM permissions, or privileged management planes. That is a governance problem, not just a technical one, because the network often continues to trust identities long after their scope should have ended. Practitioners should treat trust expansion as a containment defect, not an isolated product issue.
A question worth separating out:
Q: Who is accountable when a trusted third-party tool is abused for lateral movement?
A: Accountability should sit with the owning service, the privileged access team, and the third-party governance process that approved the connection. If a vendor tool can spread malware or commands downstream, the issue is not only the compromise but the scope and revocation model that allowed it to remain trusted.
👉 Read our full editorial: Hidden network vulnerabilities in 2026 are really identity problems
