Best Breach and Attack Simulation Software in 2026
Updated
In short: OpenAEV is ranked #1 of 19 as of 3 October 2026, ahead of Atomic Red Team and Keysight Eggplant Test. The best-ranked option with a free plan is Atomic Red Team.
Breach and attack simulation software helps teams examine security readiness through simulated attacks. Compare attack simulation modes, custom scenarios and the included attack surfaces, alongside MITRE ATT&CK mapping and the size of each scenario library. Continuous scheduling and deployment model can help distinguish how a product fits into your testing approach. Free-plan availability and paid-from pricing are also comparison points. The ranked entries begin with OpenAEV and Atomic Red Team, followed by Keysight Eggplant Test and Picus Security Platform. Use the listed details to assess which options align with your security workflows.
19 breach and attack simulation software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Attack simulation modes | |
|---|---|---|---|---|---|---|---|---|
| 1 | OpenAEV | 7.4 | RecognisedAPIDocumented | Free | Yes | — | hybrid | View |
| 2 |  Atomic Red Team | 7.3 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 3 |  Keysight Eggplant Test | 6.8 | RecognisedAPIDocumented | — | — | — | hybrid | View |
| 4 | Picus Security Platform | 6.8 | RecognisedAPIDocumented | — | No | — | hybrid | View |
| 5 |  Skyhawk Security BAS | 6.8 | RecognisedAPIDocumented | — | No | — | agentless | View |
| 6 |  Infection Monkey | 5.6 | RecognisedAPIDocumented | — | Yes | — | agent-based | View |
| 7 | BlackNoise BAS | 5.5 | RecognisedAPIDocumented | — | — | — | agentless | View |
| 8 | Cymulate Platform | 5.5 | RecognisedAPIDocumented | — | — | — | agentless | View |
| 9 |  PurpleSharp | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 10 | SCYTHE | 5.4 | RecognisedAPIDocumented | — | No | — | — | View |
| 11 | Pentera Platform | 5.2 | RecognisedAPIDocumented | — | — | — | agentless | View |
| 12 | SafeBreach Validate | 5.2 | RecognisedAPIDocumented | — | — | — | hybrid | View |
| 13 |  Stratus Red Team | 5.2 | RecognisedAPIDocumented | — | — | — | agentless | View |
| 14 | FourCore ATTACK | 5.1 | RecognisedAPIDocumented | — | — | — | agent-based | View |
| 15 |  MITRE Caldera | 5.1 | RecognisedAPIDocumented | — | — | — | agent-based | View |
| 16 | Cymrix | 5.0 | RecognisedAPIDocumented | — | No | — | agent-based | View |
| 17 |  Valitrix BAS Platform | 5.0 | RecognisedAPIDocumented | — | No | — | agent-based | View |
| 18 |  AttackIQ Platform | 4.9 | RecognisedAPIDocumented | — | — | — | — | View |
| 19 |  ShadowBreach | 4.9 | RecognisedAPIDocumented | — | — | — | — | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which breach and attack simulation software is ranked first on Inferse?
OpenAEV is ranked #1 of 19 with a score of 7.4. Atomic Red Team is second and Keysight Eggplant Test third.
How many of these have a free plan?
2 of the 19 on this page publish a free plan on their own pricing pages.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.