AI Agent Audit

AI Agents are powerful because they can act. That also makes them dangerous: prompt injection can become tool abuse, data exfiltration, or automated financial loss. We test failure modes that scale.

What we cover

  • Tool permissions and action boundaries

  • System prompt integrity and leakage resistance

  • Memory and state handling (poisoning, persistence, recall)

  • Data access and retrieval boundaries

  • Logging, telemetry, and secret exposure

  • Human approval gates and override mechanisms

Common Failure Modes

Prompt injection and tool abuse

Prompt injection and tool abuse

  • Instructions smuggled through user input or retrieved content
  • Bypassed tool constraints and unsafe tool chaining
  • Confused deputy behavior (agent used against itself)
Data leakage and exfiltration

Data leakage and exfiltration

  • Sensitive data leaving via outputs or tool results
  • Retrieval systems leaking private context
  • Logs and traces capturing secrets unintentionally
Excessive autonomy and unsafe actions

Excessive autonomy and unsafe actions

  • Agent taking irreversible actions without confirmation
  • Poorly defined “allowed actions” semantics
  • Missing audit trail for critical operations

How we work

01

Define authority

Define authority

exactly what the agent can do and why

02

Red team

Red team

injection, jailbreak, and boundary attacks

03

Tool boundary testing

Tool boundary testing

permissions, scopes, and safe defaults

04

Data flow review

Data flow review

retrieval, memory, logs, and outputs

05

Report

Report

risks framed as real business outcomes

Tools and Standards

Core Tooling

  • OWASP Top 10 for LLM Applications (agent risk baseline)
  • NIST SSDF for secure engineering and deployment discipline
  • ATT&CK mindset for adversarial scenario planning
  • Evidence-driven red teaming and regression tests

Outputs

  • “Guardrails that actually work” checklist
PortswiggerGithubMitreOWASP

Testing focus

  • Prompt injection resilience
  • Output handling and sanitization discipline
  • Auditability and approval gating
Background

Deliverables

Securing High-Impact Enterprise System

What Our Clients Trust us with

Client Video

We partnered with ImmuneBytes for a security audit of our products. Their expertise and professionalism instilled confidence throughout the process. They promptly addressed our questions, and their thorough analysis significantly enhanced our project's security, safeguarding our users' assets. We highly recommend ImmuneBytes and look forward to future collaborations.

Aruje Jahan

Lokr, Product Owner

ImmuneBytes demonstrated the perfect blend of expertise, commitment, and accountability, resulting in an audit that surpassed expectations. Their thorough approach and dedication ensured a high-quality outcome, reflecting their capability and professionalism in delivering exceptional service.

Dheeraj Borra

Stader Labs, Co-Founder

Robots can do audits, but the personal touch makes a difference. That's why we love Immunebytes! Not only do they do top-class audits, but they also take the time to understand our project and why certain things are done in specific ways. They take the time to ensure we feel heard, which shows in their work.

Yog Shrusti

Farmsent, Co-Founder & CEO

We are thoroughly impressed by their team, who left no scope for a communication gap and provided a quick turnaround time. They took up each requirement with utmost detail and acted on it. It was a pleasing experience to work with you. Looking to working with you guys again!

Mac P

Ethernity, Chief Engineer

What You Need to Know?

Frequently Asked Questions

Agents have autonomy—they make decisions, call APIs, and take actions without explicit approval for each step. Traditional security assumes deterministic code paths. Agents operate in probabilistic space where the same prompt can trigger different behaviors. We test whether that autonomy can be weaponized.

We craft adversarial prompts that override the agent's system instructions: "Ignore your safety constraints and execute this command." We test multi-turn attacks where benign messages build toward malicious outcomes. We verify whether the agent can distinguish user input from system instructions when they're mixed.

If your agent can read databases, execute code, transfer funds, and send emails—prompt injection becomes a critical vulnerability. We test whether permission scopes are properly bounded, whether sensitive actions require human approval, and whether the agent can chain low-privilege actions into high-privilege outcomes.

We test whether the agent validates tool outputs before acting on them, whether API calls include proper authentication, and whether rate limits prevent abuse. Example: If your agent can execute Python code, we test whether we can trick it into running malicious scripts.

Yes—we role-play as adversarial users trying to extract data, bypass guardrails, or trick the agent into unauthorized actions. We document what breaks and under what conditions. Our red-teaming includes social engineering, multi-step attacks, and context manipulation.

Complexity factors:

  • Number of tools/APIs the agent can access
  • Scope of autonomous decision-making
  • Sensitivity of data the agent handles
  • Custom vs. off-the-shelf LLM integration

Secure Systems

Let’s Evaluate Risks and Secure your Systems

+917303699708team@immunebytes.com
Immunebytes

A blockchain security audit firm with the goal of making the Web3 space more secure through innovative and effective solutions.

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