Why is Aona AI a strong alternative to Prompt Security?

If your only problem is workforce AI usage, Aona simplifies the stack and the spend compared with a broad platform. Aona focuses on the employee layer: shadow AI discovery, real-time coaching, DLP for AI tools, and AI upskilling. It is SOC 2 Type II certified, reports 92.9% AI classification accuracy, and offers a self-serve 30-day free trial. Prompt Security is the better fit when you also need application AI security like an LLM firewall and agent runtime controls.

Where is Aona weaker than Prompt Security?

Honestly: 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. We carry these caveats verbatim from our own Aona vs Prompt Security comparison so you can evaluate with eyes open.

Is there a free trial to evaluate these alternatives?

Aona offers a 30-day free trial covering AI adoption analytics, shadow AI discovery, security and compliance monitoring, and real-time employee coaching, with no credit card required. Prompt Security and most platform-breadth vendors run sales-led evaluations instead of a self-serve trial.

Is Prompt Security still independent after the SentinelOne acquisition?

No. SentinelOne announced its acquisition of Prompt Security in August 2025 and completed it on 5 September 2025 for approximately USD 180 million, and has said it will integrate the technology into its Singularity platform. The product continues under the Prompt Security name as of July 2026, and no sunset has been announced. The honest questions are about standalone packaging, support continuity, and roadmap priorities inside a larger platform. If vendor independence matters to your shortlist, Aona AI is an independent, purpose-built Workforce AI Security platform with a 30-day self-serve trial. Facts verified July 2026.

Focused workforce tool or broad platform: which should I choose?

If your only problem is workforce AI usage, a focused tool like Aona keeps the stack and the spend smaller. If you also have application AI security exposure, the right move can be to keep a broad platform like Prompt Security for the LLM firewall and agent runtime, and run a workforce-specialist tool alongside it.

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Alternatives guide

Prompt Security alternatives
(2026)

Prompt Security is a broad GenAI security platform covering workforce and application AI, acquired by SentinelOne in September 2025. 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.

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92.9%

AI classification accuracy

SOC 2 Type II

Independently certified

30 days

Free trial, no card

Alternatives compared

Acquisition facts verified July 2026

What the SentinelOne acquisition changes

SentinelOne announced an agreement to acquire Prompt Security on 5 August 2025 and completed the deal on 5 September 2025, for approximately USD 180 million in cash and stock.
SentinelOne has said it will integrate Prompt Security's GenAI and AI-agent security technology into its Singularity platform.
As of July 2026, the product continues to operate under the Prompt Security name. No rebrand or product sunset has been announced.

Questions worth asking before you renew or shortlist

?Will the employee-facing module stay available standalone, or move into Singularity platform packaging and licensing at renewal?
?What happens to support SLAs, your account team, and response times while the integration is underway?
?How will the workforce AI roadmap be prioritised inside an endpoint-security company's wider platform?

Aona is independent and purpose-built for Workforce AI Security, with 7-region data residency (AU, FR, UK, DE, US, SG, HK) and a 30-day self-serve trial, so you can evaluate an independent alternative on your own terms while those questions get answered.

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.

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.

Prompt Security

Broad GenAI security platform spanning workforce AI, an LLM firewall, and agent runtime controls, covering both employee and application AI security. Acquired by SentinelOne in September 2025.

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

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.

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.

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.

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.

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