Browser & Shadow AI Comparison

Scope contrast: Standalone GenAI silo vs 4-in-1 AI, SaaS DLP, Access & HRM platform

Elba vs Harmonic Security: the unified alternative protecting AI prompts and SaaS data.

Harmonic Security focuses specifically on enterprise workforce AI governance and prompt classification across Explore, Guide, and Command modules, partnering externally with vendors like KnowBe4 for awareness training. Elba gives 50 to 2,500 employee organizations inline AI prompt masking and blocking on ChatGPT, Claude, Gemini, and Copilot plus 7-source SaaS DLP, OAuth governance, 46-connector User Access Reviews, and phishing defense in one platform.

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Architectural Fit

Specialized Fit

When to choose Harmonic Security

Designed for 1,000 to 10,000+ employee enterprises buying a dedicated standalone AI governance point solution.

You have dedicated AI governance budget purely for workforce LLM prompt classification and custom enterprise SLM models.
Your enterprise already runs separate SSPM, Cloud Drive DLP, Identity Governance, and KnowBe4 awareness contracts.
You are comfortable with custom enterprise-only quoting for a single security layer.

Unified 4-in-1 Fit

When to choose Elba

Built for 50 to 2,500 employee teams where AI security, cloud file oversharing, OAuth sprawl, and employee training share one team and one budget.

Inline Automated Prompt Masking (fictional replacement values), prompt blocking, and text/code upload DLP across ChatGPT, Claude, Gemini, and Copilot.
Clean up the SharePoint, OneDrive, and Google Drive oversharing that feeds internal AI assistants like Microsoft 365 Copilot.
Include OAuth risk checks, 46-connector User Access Reviews, phishing simulations, and OVHcloud Gravelines AI inference in one contract.

Side-by-Side Capability Matrix

Side-by-side capability comparison: Elba vs Harmonic Security

Comparing a dedicated GenAI point solution against Elba’s connected AI, Cloud DLP, Access Review, and Human Risk architecture.

Side-by-side capability comparison: Elba vs Harmonic Security
Evaluation Criterion	Elba	Harmonic Security
Shadow AI discovery & personal vs work login context	OAuth + 4 browsers; local work/personal/signed-out check without exporting private emails	Browser & network GenAI discovery across Explore/Guide/Command
Inline AI prompt masking & blocking	Fictional-value prompt masking, blocking & text/code upload DLP (ChatGPT, Claude, Gemini, Copilot)	Inline prompt warning and blocking via SLM classification
SharePoint & Google Drive oversharing cleanup (Copilot readiness)	7 cloud DLP sources + owner-led cleanup via Sam + 100-file surgical Drive removal	Not included (cannot clean up cloud drive permissions)
Third-party OAuth scopes & SaaS vendor breach Playbooks	Google Workspace, M365 & Dropbox OAuth audit + vendor CVE/breach Playbooks	Focused on AI app risk; no broad cross-SaaS OAuth remediation
Automated User Access Reviews (ISO 27001 / SOC 2 / NIS2)	46 identity connectors + CSV/screenshot imports + dated PDF & CSV decision logs	Not included
Browser extension inventory & permission scoring	Peer extension inventory (Chrome, Edge, Firefox) + permission risk score (Chrome, Edge)	AI browser extension visibility
Phishing simulations & security awareness training	Included natively (email/QR phishing, Gmail/Outlook AI triage, 8-language courses)	Not included (relies on external partners such as KnowBe4)
Multi-channel employee remediation assistant	Sam across Slack, Microsoft Teams, Google Chat & Email + grace-period auto-fix	In-browser coaching nudges
AI model inference location & data minimization	OVHcloud AI Endpoints in Gravelines, France; OVHcloud EU DBs; zero raw prompts stored	US/UK cloud infrastructure

Platform Consolidation

Why AI governance fails when disconnected from SaaS files and OAuth.

Employees leak data into external chatbots via the browser AND expose internal files to Microsoft 365 Copilot via broad SharePoint links.

Solve external Shadow AI and internal Copilot oversharing together

Harmonic guards browser prompts, yet cannot close broad SharePoint or OneDrive links before Copilot indexes sensitive HR or finance folders. Elba fixes both sides of AI risk.

Fictional-value prompt masking keeps work moving

Elba replaces PII, credentials, financial figures, and confidential terms right inside the user’s draft with realistic fictional replacements so prompts stay useful without exposing real data.

Sovereign French AI inference on OVHcloud Gravelines

European DPOs scrutinize where AI security tools process telemetry. Elba runs AI inference on OVHcloud AI Endpoints in Gravelines, France, and never stores raw prompt text.

Deployment & Governance Scope

Honest architectural fit for CISOs and AI governance leads

Evaluating standalone GenAI tooling versus a unified mid-market security platform:

Choose Harmonic Security if you are a 2,500+ seat US or UK enterprise procuring a dedicated AI-only DLP layer alongside existing SSPM, Cloud DLP, and KnowBe4 deployments.
Choose Elba if your 50 to 2,500 employee team wants inline ChatGPT, Claude, Gemini, and Copilot prompt masking unified with Cloud DLP, OAuth governance, User Access Reviews, and phishing training.
Pair Elba’s OpenAI and Anthropic Admin API connectors (users + remediation) with managed browser controls to govern both paid AI seats and shadow personal sessions.

A closer look

The questions that matter.

How does Elba’s automated AI prompt masking work?

When an employee drafts a prompt containing sensitive PII, PHI, credentials, financial data, or confidential entities in ChatGPT, Claude, Google Gemini, or Microsoft Copilot, Elba replaces those entities in-draft with realistic fictional values before submission (failing closed if masking cannot complete). Admins can also choose passive monitoring or strict prompt blocking.

Does Elba store raw employee prompts or personal email addresses?

No. Elba classifies whether an AI session is work, personal, or signed-out locally inside the browser without exporting personal email addresses, and stores only sensitivity classifications, SHA-256 hashes, and metadata rather than raw prompts or file contents.

Can Elba audit paid OpenAI and Anthropic seats as well as browser usage?

Yes. Alongside browser controls on ChatGPT, Claude, Gemini, and Copilot, Elba includes native API connectors for OpenAI and Anthropic supporting user inventory and seat remediation during User Access Reviews.

Where does Elba run its AI classification models?

Elba runs AI model inference on OVHcloud AI Endpoints in Gravelines, France, with EU core customer databases on OVHcloud and US core customer databases on Neon. Customer data is never used to train AI models.

Connected Workflows