Identity is the New Perimeter
The old security perimeter no longer fits the way organizations work. People connect from anywhere, applications live across SaaS and cloud platforms, APIs move data between systems, partners need selective access, and machines now perform many business-critical actions without human intervention. In this environment, location tells us far less than identity. The central security question has shifted from “Is this request coming from inside the network?” to “Who, or what, is asking for access, what can it do, and should we trust it right now?”. Therefore, this shift states that identity is the new perimeter.
Identity and Access Management can no longer function as a simple login mechanism. Instead, it now sits at the center of cybersecurity strategy, combining authentication, authorization, identity governance, privileged access management, machine identity controls, analytics, and continuous risk evaluation. Attackers understand this well. Rather than breaking through the front door, they often steal or abuse valid credentials, move quietly through systems, and appear legitimate until the damage has already begun.
Moreover. the challenge grows even larger with non-human identities. Service accounts, APIs, certificates, tokens, bots, containers, workloads, IoT devices, and AI agents often outnumber human users. In many cases, they lack clear ownership, carry excessive privileges, use long-lived credentials, or remain active long after their original purpose has disappeared. For this reason, securing them requires a disciplined operating model. A model that:
- discover every identity,
- assign ownership,
- enforce least privilege,
- rotate or shorten credentials,
- remove secrets from code,
- monitor behavior,
- codify policies,
- and retire unused access automatically.
Furthermore, AI agents add a new layer of urgency. As they gain the ability to call tools, access data, trigger workflows, and act autonomously, organizations must treat them as distinct identities with explicit permissions, runtime controls, audit trails, and rapid revocation paths.
Ultimately, the organizations that lead in cybersecurity will not simply add more controls around identity. Instead, they will make identity a continuous, measurable, and accountable system of trust. Above all, everyone needs to keep in mind that in modern environments, identity becomes the new perimeter.
Read the original article (in Greek).
