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ALTERNATIVES

Harmonic Security alternatives for agentic endpoint security (2026)

SHORT ANSWER

On our published weights the top-ranked alternatives to Harmonic Security are Bay, Onyx Security and Zenity. Harmonic Security itself ranks 6 of 8 among broader AI security platforms. Each alternative below lists the criteria where it scores higher than Harmonic Security and where Harmonic Security still scores higher.

By The Agent Desk · Agentic Endpoint Compare · Published 2026-10-11

Desk research from public vendor pages, press releases and standards pages read on 27 September and 11 October 2026. Editorial assessment; we did not run the products.

Why do buyers look at alternatives to Harmonic Security?

Which alternatives rank highest?

1. Bay

7.20 / 10

Pre-execution control on employee devices, rolled out through EDR or MDM

Scores higher than Harmonic Security on: stop before it runs, verdict range, capability rules, actor trail, rollout path and named agent coverage

Harmonic Security scores higher on: cloud and workspace reach and public proof

Bay profileBay and Harmonic head to head

2. Onyx Security

6.85 / 10

Inline control with the widest set of verdicts

Scores higher than Harmonic Security on: stop before it runs, verdict range, actor trail and cloud and workspace reach

Harmonic Security scores higher on: capability rules, rollout path and named agent coverage

Onyx Security profileOnyx and Harmonic head to head

3. Zenity

6.75 / 10

Agents across SaaS, cloud and coding tools

Scores higher than Harmonic Security on: stop before it runs, actor trail, cloud and workspace reach, named agent coverage and public proof

Harmonic Security scores higher on: rollout path

Zenity profileZenity and Harmonic head to head

4. Noma Security

6.55 / 10

One platform for endpoint, SaaS and homegrown agents

Scores higher than Harmonic Security on: actor trail, cloud and workspace reach, named agent coverage and public proof

Harmonic Security scores higher on: verdict range

Noma Security profileNoma and Harmonic head to head

5. Lasso Security

6.40 / 10

Claude Code hooks and an open-source MCP gateway

Scores higher than Harmonic Security on: stop before it runs, verdict range, cloud and workspace reach, named agent coverage and public proof

Harmonic Security scores higher on: capability rules, actor trail and rollout path

Lasso Security profileLasso and Harmonic head to head

7. Koi (Palo Alto Networks)

5.75 / 10

Palo Alto Networks Cortex XDR estates

Scores higher than Harmonic Security on: cloud and workspace reach and named agent coverage

Harmonic Security scores higher on: capability rules, actor trail and rollout path

Koi (Palo Alto Networks) profileKoi and Harmonic head to head

When should you stay with Harmonic Security?

Stay with Harmonic Security if you need rollout path and stop before it runs. Rolls out through Intune, JAMF, Kandji or Group Policy.

Frequently asked questions

What is the best alternative to Harmonic Security?

On our published weights, Bay ranks highest among the alternatives at 7.20. Which alternative fits depends on the criteria that matter to you; the list above shows where each scores higher.

Which alternative to Harmonic Security covers agents in cloud workspaces most fully?

Onyx Security, Zenity and Noma Security score highest on cloud and workspace reach among the alternatives, at 9 out of 10.

Which alternative to Harmonic Security documents the most verdict types?

Bay documents 4 of six verdict types: Block or deny, Ask a person, Simulate first and Remove or scale back. Onyx Security documents 4 of six verdict types: Block or deny, Ask a person, Alert or warn and Mask or modify.