Topic starter
23/06/2026 8:30 pm
TL;DR: Unosecur's analysis of identity-first Zero Trust finds perimeter security falls short when cloud and SaaS attacks use credentials, tokens, and delegated access rather than network entry alone. That shifts the focus to continuous verification and tighter entitlement control to limit misuse and movement.
Editorial analysis by NHI Mgmt Group, based on content published by Unosecur: “Zero Trust vs Traditional Perimeter: Identity Security Lessons for Managers”.
Key questions
Q: Why do over-provisioned accounts increase lateral movement risk?
A: Over-provisioned accounts give attackers more legitimate paths after a single compromise.
Q: How should security teams test whether Zero Trust controls are actually working in production?
A: Security teams should validate controls with continuous, scenario based testing, not just policy design reviews.
A: Perimeter-only security fails once attackers gain a foothold through phishing, stolen credentials, vendor access, or exposed services.
Practitioner guidance
- Map all identities and access paths Inventory cloud, SaaS, and on-prem applications together, then catalogue privileged users, service accounts, and machine identities so you can see where trust actually flows.
- Enforce MFA and passwordless for high-risk access Prioritise administrative and high-impact accounts first, because credential theft and phishing are most damaging where privileges are already elevated.
- Apply adaptive access policies Step up verification or block sessions when device health, location, or token behaviour changes in ways that do not match the expected access pattern.
Bottom line: Traditional perimeter security fails because cloud and SaaS attacks now move through identities, tokens, and delegated access rather than network entry alone.
Glossary terms: Identity-first Zero Trust, Identity Threat Detection and Response, Identity Blast Radius, Adaptive Access
What's in the full article
Unosecur's full blog covers the operational detail this post intentionally leaves for the source:
- The article's full walkthrough of the Commvault Metallic case and how SaaS trust relationships were abused.
- The step-by-step transition guidance for moving from perimeter thinking to identity-first Zero Trust.
- The article's practical metrics for tracking MFA coverage, privilege reduction, MTTR for credential incidents, and VPN reliance.
- The FAQ section's direct answers on identity-first Zero Trust, MFA, SSO, and machine identities.
👉 Read Unosecur's analysis of identity-first Zero Trust and perimeter blind spots →
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This topic was modified 6 days ago by NHI Mgmt Group
25/06/2026 3:35 am
Perimeter security has become a visibility layer, not a trust model: The article is right to treat network boundaries as insufficient when access is mediated by cloud identities, tokens, and delegated SaaS relationships. That is not a tuning problem, it is a model failure. Security programmes that still anchor on edge trust are protecting the wrong boundary, and practitioners need to move enforcement to the identity layer.
A few things that frame the scale:
- 90% of IT leaders say properly managing NHIs is essential for a successful zero-trust implementation, according to the Ultimate Guide to NHIs.
A question worth separating out:
Q: What should IAM teams do after a supply chain compromise affects cloud access?
A: They should re-baseline trust dependencies, revoke or rotate any credentials that could sign or validate access, and recertify cloud permissions tied to high-value service identities. The objective is to shrink the blast radius before attacker-created trust survives into the next session.
👉 Read our full editorial: Identity-led cloud security depends on shrinking trust at every step
This post was modified 6 days ago by NHI Mgmt Group