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Securing the Agentic Workforce

By

Dor Sarig

and

Ziv Karliner

April 27, 2026

min read

AI agents are the fastest-growing attack surface in the enterprise. They're also the least visible, least governed, and least understood.

A new kind of workforce already operates inside your company

Sometime over the last eighteen months, AI crossed a line. It stopped being a tool employees use and became a worker that operates alongside them.

That shift matters for security.

When an employee uses ChatGPT to summarize a document, that's AI assistance. When an autonomous agent monitors a CRM pipeline, drafts follow-up emails, queries an internal database for context, calls an external API to enrich the data, and triggers a workflow in a downstream system without a human approving each step, that's something else entirely. That's a member of the agentic workforce.

The agentic workforce is the growing population of AI agents that operate inside enterprises as autonomous actors. They have roles. They hold access to systems and data. They make decisions, chain reasoning steps, invoke tools, and take actions with real consequences on production systems.

Independent surveys put adoption above 72% of organizations either using or testing AI agents, with 40% running multiple agents in production workflows. Roughly three million agents operate globally today, and enterprises spin up thousands more every week. At RSA 2026, Cisco's Jeetu Patel projected the long-term curve at 100 to 1,000 agents per human — trillions of agents inside the global economy.

The security model for them barely exists.

SACR's 2026 research on Unified Agentic Defense Platforms confirms what most CISOs already suspect: more than half of deployed AI agents run without active monitoring or security controls.

A workforce with enormous power and almost no governance, executing business logic where security teams have no visibility, no control, and no way to intervene when something breaks.

This is the security challenge that defines the next phase of enterprise cybersecurity. How do we secure a workforce of autonomous agents that reason, act, and make mistakes at machine speed?

Three problems traditional security can't solve

Security architectures built over the last two decades assumed humans make decisions and software executes them deterministically. AI agents break that assumption in three specific ways.

1. Hidden logic, zero visibility

Traditional security inspects what software does. Firewalls inspect packets. DLP inspects data in motion. EDR watches process behavior on endpoints. SIEM correlates events across the stack.

AI agents introduce a layer none of those controls can see: the reasoning layer.

Every agent action starts with an internal chain of thought that decides what to do, which tools to call, what data to access, and in what order. The most dangerous failures originate inside that reasoning. An attacker who hijacks an agent's goal — what the OWASP 2026 Agentic Top 10 calls ASI01, Agent Goal Hijack — won't produce obviously malicious behavior at the action layer. The agent reasons its way into harmful behavior, following legitimate-looking logic until a hidden payload triggers.

No previous threat model covers this. Securing it means seeing inside the reasoning, continuously and in real time. Most security tools can't.

2. Full speed, no safety net

When a human employee behaves suspiciously, the security stack gets multiple chances to intervene. An alert fires. A manager gets notified. Someone revokes access before serious damage happens.

When an AI agent goes rogue, no equivalent mechanism exists in most deployments. Nothing pauses the agent mid-execution, routes a pending action to a human for approval, or kills a session based on live behavior.

Agents chain tools, call APIs, write to databases, and modify downstream systems at machine speed, with none of the natural checkpoints human workflows create.

Most organizations rely on static policy. Agents can access certain systems. Approved tools get a green light. Certain data classifications are off-limits. But static policy is deterministic governance applied to a non-deterministic actor.

An agent can stay inside its permitted access boundaries while doing something harmful or misaligned with its original intent. Simple data retrieval can compose, step by step, into exfiltration as the agent chains reasoning and reacts to fresh prompts. OWASP calls this ASI08, Cascading Failures: no individual step looks malicious, but the chain is.

Without real-time intervention, the enterprise is trusting every agent to behave correctly for every session it runs. That trust collapses fast under live conditions. The fix isn't more access control — it's action control: authorize every action, not just every session.

3. Too fast, too many

The third problem may be the most fundamental. The agentic workforce operates at a scale and speed that makes human-led security operations structurally impossible.

Look at the reality of human digital behavior in 2026. The average employee navigates around 10 different applications a day. They toggle between apps and websites 1,200 times per shift, and need roughly 9.5 minutes to recover their workflow after each switch. Human focus is fracturing — the average uninterrupted work session now lasts 13 minutes and 7 seconds.

Compare that with the agentic workforce. An AI agent doesn't suffer context-switching penalties. It doesn't need 9.5 minutes to recover its train of thought. It executes thousands of tool calls per minute across hundreds of concurrent sessions. Multiply that by the fact that the average enterprise already maintains 144 non-human identities for every human employee, and the volume of autonomous actions inside the environment becomes astronomical.

The scale problem compounds through what SACR calls the shadow agent problem. Most enterprises eventually discover that developers and business users created large portions of their agent populations without security involvement.

Developers spin up agents in notebooks. SaaS platforms hand business users low-code agent builders. Coding assistants connect to community MCP servers that never touch enterprise infrastructure. These agents don't route through corporate proxies. They don't register in cloud IAM. Many store credentials in plaintext on the endpoint.

A security program that governs only the agents it knows about covers a fraction of the actual attack surface.

How Pillar secures the agentic workforce

Pillar Security is built on one thesis: AI security is a lifecycle problem, and the most dangerous threats live in the gap between how teams build agents and how those agents behave in production.

The platform operates across four connected layers.

AI Ecosystem integrations sit at the foundation, connecting natively to where agents actually live: code and pipeline environments, SaaS and cloud platforms, endpoints. Nothing falls outside the perimeter.

AI Posture builds on that foundation with continuous discovery, supply chain analysis, agentic identity management, and AI security posture management. Security teams get a complete map of every AI asset — who built it, what it accesses, where it runs — including the shadow agents no one sanctioned.

Risk Detection and Runtime Controls operate in a continuous loop. On the detection side: agentic red teaming, attack surface exposure analysis, real-time threat detection, and coding-agent risk assessment, probing for vulnerabilities before and while agents run. On the controls side: adaptive guardrails, data leakage protection, AI gateway enforcement, and tool/MCP protection, enforcing policy in real time and intervening in under 100ms when agent behavior drifts.

Governance & Compliance sits across everything: policy enforcement, reporting and audit, incident response, mapped to the leading frameworks.

The agentic workforce already runs inside your environment. Pillar gives you the visibility, governance, and real-time control to secure it.

FAQs

What is the shadow agent problem and why does it create security blind spots?

The shadow agent problem refers to AI agents created by developers and business users without security team involvement. Developers spin up agents in notebooks, SaaS platforms offer low-code agent builders, and coding assistants connect to community MCP servers — none of which route through corporate proxies, register in cloud IAM, or avoid storing credentials in plaintext. Security programs governing only known agents cover a fraction of the real attack surface.

Why can't traditional security tools like firewalls, DLP, or SIEM protect against AI agent threats?

Traditional security tools inspect what software does at the action layer, but AI agent threats originate in the reasoning layer — the internal chain of thought that determines which tools to call and what data to access. An attacker exploiting OWASP's ASI01 Agent Goal Hijack can make an agent reason its way into harmful behavior using legitimate-looking logic, producing no obviously malicious signals that existing controls can detect.

How does cascading failure in AI agent workflows lead to data exfiltration without triggering security alerts?

Cascading failure, classified as ASI08 in the OWASP 2026 Agentic Top 10, occurs when no individual agent action appears malicious but the chained sequence is. An agent operating within permitted access boundaries can compose simple data retrieval steps into exfiltration as it chains reasoning and reacts to fresh prompts. Without real-time action-level authorization — not just session-level access control — the harmful chain completes undetected.

What is the scale of AI agent deployments in enterprises today, and why does it make human-led security unworkable?

Roughly three million AI agents operate globally today, with enterprises adding thousands more weekly. The average enterprise already maintains 144 non-human identities for every human employee. Unlike humans, agents execute thousands of tool calls per minute across hundreds of concurrent sessions with no context-switching penalty — a volume that makes human-led security operations structurally impossible. At RSA 2026, Cisco projected a long-term ratio of 100 to 1,000 agents per human.

How does Pillar Security enforce real-time control over AI agent behavior in production?

Pillar Security's Risk Detection and Runtime Controls layer operates in a continuous loop, combining real-time threat detection and agentic red teaming with adaptive guardrails, data leakage protection, AI gateway enforcement, and tool and MCP protection. When agent behavior drifts from intended goals, the platform intervenes in under 100 milliseconds — enforcing action-level authorization rather than relying solely on static session-based access policies.

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