Industries / Legal
Harmonic Security helps legal teams securely adopt AI
Accelerate legal research and drafting safely
Built with leading law firms and corporate legal departments, who helped build the models that power Harmonic. See the client data in every prompt and keep it out of unapproved AI tools.
Talk to us about securing AIWho we work with
















Why Harmonic for law firms
Govern AI use across the firm
We work with leading law firms, corporate legal departments and legal services providers, and they have helped build the models that power Harmonic's capabilities. That is why Harmonic recognizes a settlement agreement, a privileged memo or a credit agreement the way your own lawyers do. We continuously monitor for unapproved AI tools and agents, so teams only use what is authorized for client work.
01Protect
Protect confidential client and matter data
Harmonic assesses the entire submission to AI, not a list of regex patterns. Pre-trained, industry-specific small language models, built with input from leading law firms, read each prompt and file in full context to recognize unstructured legal data such as settlement agreements, legal discourse and private credit agreements.
When that material heads toward an unapproved AI tool or a personal account, Harmonic blocks it in real time and points the user to the firm's approved tool, so client work stays in sanctioned tools.
02Discover
Find every unapproved AI tool in use
Gain immediate visibility into the AI tools your staff are using. Harmonic continuously discovers and categorizes every AI application in use across the web and the endpoint.
Instantly distinguish sanctioned enterprise accounts from high-risk personal ones, and redirect users to approved tooling for dedicated use cases such as legal research.
03Custom
Add detections for your own codenames and clients
Create detections specific to your own sensitive keywords, codenames or protected clients.
That means you know and control exactly where those phrases go in AI tools, alongside everything the pre-trained models already cover.
Top resources
Resources for legal teams
Policy, discovery and the controls that keep client work inside the firm.
Related solutions
More ways Harmonic secures your AI stack
Legal teams rarely rely on a single AI tool. Here's where to look next.
Frequently asked questions
Quick answers for legal teams
Short, direct answers to what firms ask before bringing Harmonic in.
Why can't security teams just block all AI tools?
AI is embedded in approved productivity tools like Google Translate, Microsoft Copilot and Salesforce, so blocking AI would block core business functions. Employees will also use personal devices and accounts when corporate access is restricted, creating greater shadow AI risk.
Can traditional DLP detect sensitive data in AI prompts?
Traditional regex-based DLP struggles with conversational AI, because prompts are unstructured, contextual, and often contain legitimate business information that patterns cannot distinguish from sensitive data. That leads to false positives and monitor-only deployments.
Do Netskope and Zscaler offer AI-specific controls?
Some SASE vendors offer limited AI controls for a small number of high-profile domains like ChatGPT or Copilot. Those controls require per-domain integrations and do not cover the full spectrum of AI tools, embedded AI features, or agentic workflows.
What is Harmonic Security's technical differentiator?
Harmonic uses purpose-built small language models that understand user intent and sensitive data in milliseconds. This low-latency analysis lets you understand AI usage and enforce inline controls without slowing work down.

Get started
Build your AI guardrails for client work
Gain the visibility and control you need to guide AI use with confidence. Most teams see first insight in about 30 minutes.
What you'll see with Harmonic Security
- Your full AI usage footprint: every surface, every team, every exposure.
- Inline guardrails that coach, warn, or block, firing in under 200ms.
- See and control what AI agents are actually doing.
- Coverage of browser, endpoint and MCP.
- Deployment in minutes via Intune, JAMF, or Kandji.