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AGENTIC AI SECURITY

AGENTIC AI SECURITY

Block AI Threats Before Unauthorized Change

One bad prompt or one hallucination can wipe a database in seconds. Mimic enforces what your AI agents are allowed to do and blocks everything else, the instant it happens.

See Mimic stop a live attack.

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30-minute walkthrough. We never touch your live environment.

BUILT FOR TEAMS DEFENDING CRITICAL SYSTEMS

FEDRAMP READY

WHY NOW

Agents now make changes faster than anyone can catch.

Your AI agents already hold valid credentials and act without human review. When one fails, it fails at machine speed, faster than any analyst can intervene. An AI coding agent recently deleted a company's entire production database in seconds, using valid credentials, with no attacker involved.

60

sec

Time for modern ransomware to encrypt a full enterprise server. A rogue agent moves just as fast.

0

Attackers required for an AI agent to delete a production database or take down a code repository.

Infinite

Ways to misbehave that detection has to anticipate. Mimic enforces one finite known-good model instead.

THE GAP

The tools you already run were built for a different problem.

You already run endpoint detection, identity, and model guardrails. Each was built for a different problem, and each misses the problem of authorized AI agent misbehavior. This is already happening through AI coding agents, ServiceNow, and Salesforce Agentforce.

ENDPOINT DETECTION (EDR)

Good at catching slow intrusion campaigns. Blind to what an agent does in 60 seconds with a valid credential.

IDENTITY AND ACCESS

Good at proving who an agent is. Blind to what that agent does once it is in.

MODEL GUARDRAILS

Good at shaping what the model says. Blind to what the agent does to your systems.

DETECTION VS ENFORCEMENT

Two ways to secure agents. One blocks known-bad. The other allows only known-good.

One approach hunts an endless loop of bad behavior. The other approves a fixed set of good actions that block any unauthorized changes, before they execute.

DIMENSION
DETECTION ( KNOWN-BAD )
ENFORCEMENT ( KNOWN-GOOD )
The question it asks
"What bad thing happened?"
"Is this action in the known-good model?"
What it must model
Infinite bad behavior
The finite good behavior of each system
How it behaves
Probabilistic, model-dependent
Deterministic, no undefined behavior
When it acts
After the change
Before the change lands
When everything else fails
No backstop
Assume-breach last line of defense
Additive to your stack
Some tools replace EDR, SIEM, or SOAR
Runs below EDR, SIEM, and SOAR, and protects them rather than replacing them
"

We assume every other defense can fail. Mimic is the control designed to hold when they do, and to prevent the damage even after everything else has failed.

Bob Blakley
CO-FOUNDER AND CPO, MIMIC

THE DUAL THREAT

AI agents from inside. Mythos from outside.

Agentic AI creates two distinct threat vectors that both require a kernel-level enforcement response. AI Shield addresses both.

threat vector 1
AI agent behavior inside the environment

AI agents operating with valid credentials inside enterprise environments generate unauthorized changes that detection-based tools cannot reliably distinguish from authorized activity. The agent uses legitimate process pathways. Its credentials are valid. Its tool access is approved. The specific change it makes, outside its intended scope, in response to a hallucinated instruction, or as the result of a prompt injection, looks like legitimate activity at every layer where behavioral detection operates.

The threat is not a single malicious action. It is the volume, velocity, and variability of legitimate-looking agent behavior that happens to deviate from authorized scope. ServiceNow workflows, AI coding agents, Salesforce Agentforce, Ansible automation, and similar platforms are already executing this behavior across enterprise environments today.

threat vector 2
AI-accelerated vulnerability discovery from outside

Anthropic's Mythos Preview identified more than 2,000 zero-day vulnerabilities in seven weeks of testing. The time from disclosure to a working exploit, once measured in weeks, now collapses to hours when AI models can autonomously generate exploit code. A typical enterprise patch cycle runs 30 to 45 days. The math no longer works, because the exploitation window opens and closes before the organization can respond.

Mythos is a novel-exploit factory. A model that must recognize an attack before blocking it degrades by the hour against adversaries who generate new attacks faster than analysts can write detection rules.

Both vectors converge on the same problem, and the only sufficient enforcement position is the kernel, below where either threat can disguise itself.

AI SHIELD

AI Shield: Guard. Patch. Trace.

AI Shield is Mimic's kernel-level enforcement for agentic AI, combining AI Guardrails and Virtual Patching. It does not wait to recognize an attack. It already knows what each system is authorized to do and blocks anything outside the authorized behavior pattern, whether the source is an agent, a script, ransomware, or an exploit.

01

GUARD

Govern what every AI agent can do.

Enforce declared scope.
Block any action outside declared scope at the kernel, regardless of credential validity.
Intercept the trajectory.
Monitor change sequences against known-good, stopping movement to unsanctioned outcomes.
Detect post-task drift.
Evaluate post-task system state against intent, surfacing anomalous changes as violations.

02

Virtual Patch

Enforce known-good before a patch exists.

Close zero-day exposure.
Enforce known-good and block unauthorized changes regardless of exploit status.
Protect what cannot be patched.
Apply known-good policy to unmanageable systems, closing structural exposure without a vendor fix.
Limit the blast radius.
Contain a compromised process to its known-good scope, blocking lateral movement before it propagates, without operational impact.

03

TRACE

Account for every action.

Reconstruct any incident immediately.
Log a complete, sequenced record of kernel-level actions, before the investigation.
Maintain the compliance record.
Store an immutable action log structured for regulatory and legal inquiry, without reconstruction.
Prove what Mimic controlled.
Deliver a tamper-proof evidence chain ready before the board, legal team, or regulator asks.

THE ARCHITECTURE

Why Mimic enforces at the kernel.

Identity, behavioral, and endpoint tools sit at the same layer as the agent, so they can only watch and react. Mimic enforces at the kernel, the layer every change has to pass through, so it can block an unauthorized change before it executes.

Before, not after. Enforcement runs before the change executes, so the harmful change cannot evade the control.
Identity-agnostic. The test is whether the change was authorized, not whether the agent's credentials are valid, so a compromised or over-privileged credential does not bypass it.
Change Intelligence that does not degrade. A more capable agent still has to pass its change through the kernel, so the signal Mimic reads holds as agents get smarter.

VIRTUAL PATCHING

The patch window closed. Mimic still protects.

AI now finds and weaponizes vulnerabilities in hours, while enterprise patch cycles run weeks. Mimic enforces your system's known-good state at the kernel, so the unauthorized change any exploit needs is blocked whether or not a patch exists yet.

No signature needed

The CVE can be unnumbered and the exploit unpublished.

Source-agnostic

The test is whether the change was authorized, not how it arrived.

Independent of the patch cycle

Protection holds for end-of-life systems and zero-days alike.

See Virtual Patching for the Mythos Era

AGENTIC AI SECURITY, DEFINED

Mimic's Agentic AI security is unique.

Mimic's Agentic AI security protects your systems from AI agents making unauthorized changes: deleting data, altering configurations, or executing commands they were never meant to run. It governs what agents do, not just what models say.

An authorized actor. An approved tool. An ungoverned change.

Controls what a deployed agent does in production, not how the model behaves in testing.

Holds every agent to its limits - even an agent with valid credentials

Blocks a bad agent action like any other unwanted change.

PROOF

Trusted where the stakes are highest.

The CISOs and security leaders who defend critical systems trust Mimic to hold the line.

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SECURING AGENTS

So how do you actually secure an agent?

There is a wrong answer and a right one.

The wrong answer

Another AI agent.

You cannot police an unpredictable agent with another unpredictable agent.

The right answer

Known-good enforcement.

Define what good looks like, then block any agent action outside it.

BUYER'S GUIDE

How to evaluate any agentic AI security solution.

Use these five criteria to judge any agentic AI security solution, including ours.

1

Enforces known-good behavior, not an endless list of known-bad.

2

Runs deterministically, with no random behavior of its own.

3

Covers every unwanted change: agents, ransomware, and human error.

4

Acts at machine speed, before the change lands.

5

Holds up when every other control has failed.

These five are the starting point. Mimic's new Guide to Agentic AI Security expands them into an 8-point evaluation checklist, with the threat model and a reference architecture behind each one.

Whitepaper

The CISO's Guide to Agentic AI Security

Free whitepaper

The CISO's Guide to Agentic AI Security

A practical guide for security leaders deciding how to stop AI agents from making unauthorized changes to production.

The agentic AI threat model: what an agent with valid credentials can do in under a minute.

The three blind spots: why endpoint detection, identity, and model guardrails miss the agent's action.

Known-good vs detection: the enforcement model explained for technical buyers.

The 8-point checklist: how to evaluate any agentic AI security vendor.

Board-ready briefing: how to explain agent risk to leadership.

Reference architecture: an assume-breach blueprint for AI agents in production.

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FAQ

Agentic AI security, answered.

What is agentic AI security?

+

Agentic AI security protects your systems from any unauthorized changes a deployed AI agent attempts, such as deleting data, altering configurations, or running commands it was never meant to run.

Is agentic AI security the same as securing the AI model?

+

Securing the model governs what it says, while agentic AI security governs what a deployed agent is allowed to do to production. Mimic works on the second, stopping the unwanted changes an agent makes when it is prompted badly or hallucinating, regardless of how the model itself was built.

Do I need agentic AI security if I already have CrowdStrike or another EDR?

+

You still need agentic AI security, because endpoint detection was built to find slow intrusion campaigns that unfold over days or weeks. It was not designed for a machine-speed agent that makes changes in seconds with a valid credential, and that is the gap Mimic closes.

Can't I use a second AI agent to police the first one?

+

A second agent cannot defend against a malfunctioning agent, because a control over a malfunctioning agent has to be deterministic. A second agent is non-deterministic and can be prompted, confused, or hallucinate just like the one it watches, so Mimic enforces a fixed known-good model instead.

What does agentic AI security actually protect against?

+

It protects against the unwanted changes a malfunctioning or badly prompted agent makes, such as deleted databases, wiped repositories, and unauthorized configuration changes. What matters is not whether the agent is malicious but whether its action falls outside the known-good model, and Mimic blocks any action that does.

How is known-good enforcement different from threat detection?

+

Threat detection tries to recognize every possible bad action, a list that is effectively infinite, so it is always chasing the next attack. Known-good enforcement defines the finite set of known-good behavior instead and blocks anything outside it, so it never has to predict what an attacker or agent will try next.

Why does Mimic enforce at the kernel?

+

AI agents act through the same legitimate pathways as authorized administrators, so controls at the application layer cannot tell an unauthorized agent change from an authorized one. The kernel is the layer every change must pass through, so enforcing there lets Mimic evaluate and block a change before it executes, below where an agent can disguise its behavior.

Does the same approach cover ransomware and human mistakes?

+

The same enforcement covers all three, because Mimic protects against unwanted changes whether they come from ransomware, an AI agent, or a person having a bad day. It treats every unauthorized change the same way: if the action falls outside the known-good model, it is blocked.

How does Mimic protect against AI-discovered vulnerabilities?

+

AI now finds and weaponizes vulnerabilities faster than vendors can patch them. Mimic's Virtual Patching does not depend on a vendor-supplied patch or a known signature. Every exploit still requires an unauthorized change to execute, and Mimic blocks that change at the kernel against the known-good model whether or not a fix exists yet.

How do I see it work?

+

You can see it in a guided live demo, where the Mimic team runs a real attack scenario against a protected environment and you watch enforcement stop it in real time. A hands-on evaluation is the fastest way to judge whether it fits your stack.

How fast does enforcement happen?

+

Enforcement happens in real time, at the kernel, before the unwanted change is completed, because each action is checked against the known-good model the instant it is attempted. Mimic works at machine speed precisely because human-in-the-loop review cannot react fast enough to a change that takes seconds.

Will Mimic block legitimate agent actions or slow down my automation?

+

Mimic allows every action that falls inside the known-good model defined for each system, so authorized automation keeps running. It only stops actions outside that model, which is what separates known-good enforcement from a blunt lockdown.

Does Mimic record what an agent attempted?

+

Mimic keeps a record of every attempted action and every block, so you can show leadership and auditors exactly what an agent tried to do and what was stopped.

Can Mimic recover what an agent changed?

+

Mimic blocks an unauthorized change before it executes, and where a change has already occurred it can roll the system back to a clean known-good state, so you are not left rebuilding from backups whose integrity status is unknown after the fact.

Is Mimic FedRAMP authorized?

+

Mimic is FedRAMP Ready, which positions it to serve federal, defense, and critical-infrastructure buyers that cannot adopt uncertified technology. In regulated environments, that status can determine what you are even allowed to purchase.

What is known-good enforcement?

+

Known-good enforcement protects what is supposed to be on a system instead of chasing the endless list of what should not. Mimic builds a verified model of each system's authorized files, processes, and actions, then blocks anything outside it, including unauthorized actions taken by AI agents.

What is an unwanted change?

+

An unwanted change is any modification to your systems that was not authorized, whether it comes from ransomware, a misconfigured or hallucinating AI agent, or a person making a mistake. Mimic treats all of them the same way and blocks the change when it falls outside the known-good model.

What does assume breach mean?

+

Assume breach is the principle that no single control can be trusted to stop every threat, so you design for the moment a control is bypassed or defeated. Mimic is built to be that last line of defense, staying useful when other controls have already been bypassed.

What is deterministic defense?

+

A deterministic defense behaves the same way every time, with no random behavior of its own. That matters with agents, because a defensive control built on an unpredictable model could be deceived or confused just like the agent it is meant to regulate. Mimic's enforcement is deterministic by design.

Stop every unwanted change.

Book a 30-minute demo and see Mimic stop a bad agent before it acts.

Book a Demo

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30-minute walkthrough. We never touch your live environment.