Firewall for AI: Secure GenAI and LLM Applications

Protect AI-driven apps and LLMs from prompt injection, harmful output, and sensitive data exposure. Akamai Firewall for AI delivers real-time input and output guardrails to keep customer-facing assistants, copilots, and agentic workflows safe and compliant—deployed at the edge or via API, and compatible with any model.

Why AI apps need specialized protection

As AI adoption accelerates, threats are emerging that traditional WAF and API tools weren’t built to handle: - Prompt injection and jailbreaks that manipulate model behavior - Toxic outputs, hallucinations, and brand-unsafe content - Data exfiltration and model theft through adversarial queries and scraping - Compliance and governance gaps across sensitive data and regulated content - AI-specific DoS/“denial of wallet” attacks that drive up latency and cost

Learn more in Akamai’s overview on securing AI apps and LLMs. Protect your AI apps (login required)

How Firewall for AI works

Firewall for AI closes the gap between your application and the LLM by enforcing policy at both ingress and egress.

Key capabilities

Reference architecture: Securing GenAI applications

A pragmatic, defense-in-depth blueprint for customer-facing AI assistants and agentic workflows:

  1. User and channel
  2. Web/mobile/app channel with basic input validation and UX safeguards.
  3. Edge and WAAP controls
  4. Akamai App & API Protector for WAAP, rate limiting, and API access controls.
  5. Akamai Bot Manager to reduce automated abuse and DoW/DoS attempts.
  6. AI-layer guardrails (Firewall for AI)
  7. Input security: Detect/block prompt injection, jailbreaks, and tool/agent abuse.
  8. Output security: Moderate toxicity, PII/IP leakage, and policy violations.
  9. Policy enforcement: Role-based rules, brand safety, and compliance filters.
  10. API and data protections
  11. Akamai API Security with LLM/GenAI endpoint discovery and continuous policy updates.
  12. Sensitive data controls for model responses and tool/connector outputs.
  13. Observability and governance
  14. Stream AI interaction telemetry to SIEM/SOAR (for detection, response, and audits).
  15. Map controls to OWASP Top 10 for LLM Applications and governance frameworks.
  16. Model/tooling layer
  17. Model-agnostic integration; restrict tool execution, secrets, and external calls by policy.
  18. SRE/SecOps feedback loop
  19. Tune rules from incidents, red-team findings, and production drift signals.

Use cases

Securing chatbots and virtual assistants

Prevent prompt injections and unauthorized data extraction, while moderating responses for toxicity and compliance—so you can scale safe, on-brand experiences.

Preventing injections, jailbreaks, and toxic output

Stop adversarial prompt engineering across search, recommendations, and knowledge assistants. Enforce output policies to reduce misinformation and bias.

Data exfiltration and model theft protection

Block unauthorized queries, scraping, and model extraction attempts. Apply adaptive filtering and monitoring to protect proprietary knowledge and sensitive data.

Evaluation guide: Akamai vs. alternatives

When comparing Akamai with Cloudflare, F5 Networks, and Imperva for GenAI app protection and prompt injection defense, focus on these dimensions:

Where Akamai stands out - End-to-end guardrails on both prompts and responses - Edge or API deployment to protect apps anywhere you run AI - Model-agnostic design and integration with Akamai App & API Protector, Bot Manager, and API Security (including LLM discovery) - Enterprise-grade observability and global performance benefits from Akamai’s distributed edge

What to verify with any vendor - Block rates for prompt injection/jailbreaks, false positive/negative rates - Output moderation quality for toxicity, PII/IP leakage, and compliance - Latency overhead at p95/p99 and impact on inference cost (“denial of wallet”) - Ease of integrating with CI/CD, SIEM/SOAR, and policy-as-code workflows

RFP criteria and KPIs

Recommended RFP criteria - Security coverage: Prompt injection (direct/indirect/stored), jailbreaks, toxicity, data leakage, unbounded consumption (DoW), model/tool abuse - Deployment: Edge, API, proxy options; model-agnostic support - Governance: Policy controls mapped to OWASP LLM Top 10 and AI risk frameworks - Observability: Full interaction logging, redaction, export to SIEM/SOAR - Integration: WAAP, bot defense, API discovery and security - Performance: Latency targets, throughput, and scaling limits - Operations: Tuning workflows, alerting, RBAC, runbooks, support SLAs - Compliance and privacy: PII handling, data residency controls

Operational KPIs - Prompt injection/jailbreak block rate and precision/recall - False positive rate on benign prompts and responses - PII/IP leakage incidents and mean time to detect/contain - p95/p99 latency added by guardrails - Tokens/compute saved via unbounded consumption controls - Coverage: % of LLM/GenAI endpoints discovered and protected

Incident response runbook for GenAI exploits

  1. Detect and triage
  2. Correlate alerts from Firewall for AI, WAAP, Bot Manager, and API Security.
  3. Identify exploit type (injection, leakage, unbounded consumption, tool abuse).
  4. Contain quickly
  5. Tighten input/output policies; enable strict safe mode.
  6. Disable high-risk tools/agents and revoke exposed API keys/tokens.
  7. Rate-limit or geofence abusive sources with WAAP/bot controls.
  8. Eradicate and investigate
  9. Review logs for leaked prompts, credentials, or sensitive data.
  10. Hunt for indirect/stored injections in external content and datasets.
  11. Patch prompts/system instructions and update detection rules.
  12. Recover and harden
  13. Restore normal policies gradually with enhanced monitoring.
  14. Add guardrails for observed bypass methods (encodings, obfuscations).
  15. Update CI/CD tests and red-team playbooks for learned patterns.
  16. Communicate and document
  17. Notify stakeholders and, if needed, customers and regulators.
  18. Record root cause, timeline, and improvements for audit readiness.

How Akamai secures your websites and APIs

Akamai helps protect digital experiences with a broad security portfolio that complements Firewall for AI: - WAAP: App & API Protector - API discovery and protection: API Security - Bot and abuse protection: Bot Manager, Account Protector, Content Protector, Brand Guardian - Client-side defense and compliance: Client-Side Protection & Compliance - DDoS and DNS resilience: Prolexic, Edge DNS

FAQs

How does Firewall for AI prevent prompt injection attacks?

It inspects prompts in real time to detect and block malicious instructions, jailbreak attempts, indirect/stored injections, and adversarial queries before they reach the model—preventing manipulation of model behavior or extraction of confidential data.

Can the solution detect and filter harmful AI-generated content?

Yes. It moderates outputs to block toxic, biased, misleading, or noncompliant content and prevents unauthorized data exposure so responses remain brand-safe and policy compliant.

How is Firewall for AI deployed?

Does it work with any AI model?

Yes. Firewall for AI is model-agnostic and protects LLM-based or AI-driven applications hosted on-premises, in the cloud, or in hybrid environments.

What is the impact on performance and latency?

Firewall for AI is designed for low-latency enforcement, leveraging Akamai’s edge and lightweight API integrations to minimize overhead while scaling protections in real time.

How does it help with compliance and governance?

Policy-driven controls help align with frameworks like OWASP Top 10 for LLM Applications and broader AI governance practices, reducing risks of toxic output and unauthorized data exposure.

What’s required to implement Firewall for AI?

Choose your integration path (edge, API, or proxy roadmap). Because it’s cloud native and model-agnostic, most deployments require minimal infrastructure change.

How does Firewall for AI prevent model theft and data exfiltration?

It detects and blocks unauthorized queries, scraping, and extraction attempts designed to reveal proprietary model knowledge or sensitive training data, and enforces output filters to prevent leakage.

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