30 Days Gen AI Risk Trial -Start Now
Book a demo
Alternatives guide

Prompt Security alternatives (2026)

Prompt Security is a broad GenAI security platform covering workforce and application AI. If you are comparing it against other options, here is a ranked, honest list of real alternatives for Workforce AI Security, led by Aona AI. We include where Aona is weaker, carried verbatim from our own head-to-head comparison.

92.9%
AI classification accuracy
SOC 2 Type II
Independently certified
30 days
Free trial, no card
6
Alternatives compared

The best Prompt Security alternatives, ranked

A ranked list of real, publicly known alternatives. Aona AI leads for teams whose problem is workforce AI only and who want a focused tool. Every vendor below is a genuine product you can evaluate.

1

Aona AI

Our pick

Workforce AI Security at the browser and endpoint layer: shadow AI discovery, real-time coaching, DLP for AI tools, governance, and AI upskilling. SOC 2 Type II, 92.9% AI classification accuracy.

Best for: Mid-market teams whose problem is workforce AI only, who want a focused tool and a self-serve 30-day trial rather than a broad enterprise platform.

2

Prompt Security

Broad GenAI security platform spanning workforce AI, an LLM firewall, and agent runtime controls, covering both employee and application AI security.

Best for: Organisations that need workforce AND application AI security from a single vendor and can absorb a longer enterprise rollout.

3

Harmonic Security

Generative AI governance via a lightweight browser extension and desktop client, nudging users toward safer behaviour across many AI surfaces.

Best for: US-centric enterprises that want a browser-extension data-protection layer for employee AI use.

4

WitnessAI

Network-layer AI security and governance that observes AI traffic and applies identity-aware policy at the network, built for large-enterprise scale.

Best for: Large enterprises whose AI risk is mostly browser traffic at scale across a managed network.

5

Nightfall AI

Data leak prevention and DLP with machine-learning detectors across SaaS, with coverage extending to generative AI tools.

Best for: Teams that want a DLP-first platform with AI coverage added on top.

6

Cyberhaven

Data detection and response that tracks data lineage across the enterprise, with controls extending to data flowing into AI tools.

Best for: Organisations that want data-lineage-driven DLP as the foundation, with AI use as one of the flows it governs.

Where Aona is weaker

We carry these caveats verbatim from our own Aona vs Prompt Security comparison. An honest alternatives list has to include where the leader falls short.

  • !Narrower scope than Prompt Security: no LLM firewall, no agent runtime controls, no AppSec AI hardening today.
  • !If you need a single-vendor platform across workforce AND application AI security, Aona is half the answer.
  • !Workforce-side AI agent inspection on the endpoint is newer than Prompt Security's runtime agent controls. Prompt Security's agent runtime has more time in market.
Read the full Aona vs Prompt Security comparison →
FAQ

Prompt Security alternatives, answered

The leading Prompt Security alternatives are Aona AI, Harmonic Security, WitnessAI, Nightfall AI, and Cyberhaven. Aona AI leads this list for teams whose problem is workforce AI only, because it is a focused Workforce AI Security tool with shadow AI discovery, real-time coaching, DLP for AI tools, and a self-serve 30-day trial, without the cost and complexity of a broad enterprise platform.
See it on your environment

Compare Aona against your shortlist

Book a demo to see prompt-level visibility, shadow AI discovery, and real-time coaching on your own environment. Or start a 30-day free trial, no credit card required.

SOC 2 Type II · 92.9% AI classification accuracy · 30-day free trial