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Harmonic Security suits security leaders who need to see and steer AI use across a company. Hushbridge suits people who want to put client details through AI and get them back.
Broad platform
Harmonic Security is an AI governance platform for security teams. It sorts each AI task by business purpose and shows which tools people use and why. When someone is about to paste sensitive data, it can warn them, ask for a business reason, point them to an approved tool, or block the action. It names technology, legal, insurance and healthcare firms as targets.
Local protection layer
Hushbridge lets the work go ahead with the details hidden. On your device it swaps them for placeholders such as [PERSON_1] and shows you what the AI will get. After you review it, the placeholder version goes to the AI. Real values come back on your device. It fits professionals, small teams and developers.
| Question | Harmonic Security | Hushbridge |
|---|---|---|
| What it protects | Company data in employee AI use across ChatGPT, Codex, Claude, Microsoft and GitHub Copilot, and AI agents that act through MCP. | Names, identifiers, addresses, secrets and anything on your own "always protect" list, in text you type or paste. |
| Where processing happens | Not verified. The pages checked do not say where classification runs. EU hosting is offered on request. | On your device. |
| Where original values are stored | Not published. The pages checked describe no swap of values. | In a swap table that stays on your device. |
| Restore in replies | Not documented. Its actions are block, warn with context, or log for review. | Yes. Real values return on your device in supported replies. |
| How you use it | A browser extension for Chrome, Edge, Firefox and Safari, plus an MCP gateway for Windows, macOS and Linux. | A browser extension for ChatGPT, Claude, Gemini, Copilot and Perplexity, a web workspace, or the SDK and local proxy in your own code. |
| Deployment | Rolled out by IT through Intune, JAMF, Kandji or Group Policy. Harmonic says setup takes minutes. | The extension installs manually in Chrome with "Load unpacked". It is not in the Chrome Web Store yet. Workspace and billing run on tightlipai.com during the move to the new name. |
| Pricing | Not published on its own pricing page, which lists three tiers: Explore, Guide and Command. AWS Marketplace lists Explore at USD 163 per user per year, with a 200-user minimum on a 12-month contract. | USD 0.05 per credit. Top-ups from USD 100. USD 20 free credit on sign-up (to be reconfirmed before launch). One credit covers each started block of 8,000 tokens. |
The AWS Marketplace listing says pricing depends on your needs and points buyers to a private offer for a custom quote. Longer contracts are listed with discounts.