AttackIQ Platform is a continuous threat exposure management platform for modeling adversary behavior, finding attack paths, validating security…
Best Breach and Attack Simulation Software in 2026
To examine how security defenses respond to simulated threats, compare the exercises and operating choices each platform describes. Picus Security Platform, OpenAEV, and Cymulate Platform are among the entries. Attack simulation modes and included attack surfaces indicate the breadth of activity covered, while custom attack scenarios and scenario library size help distinguish ways to shape exercises. Also consider…
MITRE Caldera is an open-source cybersecurity framework for automating adversary emulation and routine security assessments.
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OpenAEV
OpenAEV is an Adversarial Exposure Validation platform for cybersecurity and crisis-management teams.
Free planWebAPILinuxSelf-hosted6.3Free plan - 5
SafeBreach Validate
WebAPILinuxmacOS6.3 - 6
Atomic Red Team
Atomic Red Team is a free library of security tests for checking whether security controls provide visibility and detect adversary behaviors.
Free planAPILinuxmacOSWindows6.2Free plan - 7
Infection Monkey
Infection Monkey is an open-source breach and attack simulation tool for organizations assessing resilience to perimeter breaches and infection of internal servers.
Free planWebLinuxSelf-hostedWindows6.2Free plan - 8

Picus Security Platform
Picus Security Platform helps security teams validate attack surfaces, exposures, and security controls so they can prioritize risks and remediation.
WebAPILinuxmacOS6.1 - 9

SCYTHE
SCYTHE is a continuous Adversarial Exposure Validation platform for enterprise security teams.
WebLinuxSelf-hostedWindows6.1 - 10
Stratus Red Team
Stratus Red Team is a self-contained Go binary for running focused offensive techniques against live cloud environments to validate detections.
APILinuxmacOSSelf-hosted6.0 - 11

Cymulate Platform
Cymulate Platform continuously validates security controls against real-world threats and provides guidance for improving defenses.
Web5.8 - 12

FourCore ATTACK
FourCore ATTACK is a platform for simulating cyberattacks to check how an organization’s security controls respond.
WebLinuxSelf-hostedWindows5.8 - 13
Skyhawk Security BAS
Skyhawk Security BAS is a paid, cloud-based Breach and Attack Simulation platform for cloud security teams and MSSPs.
WebAPI5.8 - 14
Valitrix BAS Platform
Valitrix BAS Platform is a breach and attack simulation platform that continuously checks security controls against adversary techniques mapped to MITRE ATT&CK.
APILinuxmacOSWindows5.8 - 15

Pentera Platform
Pentera Platform validates security controls by emulating attacks, helping teams prioritize demonstrated exposure and support remediation.
WebAPILinuxSelf-hosted5.7 - 16

Cymrix
Cymrix is a cloud-based breach and attack simulation platform for assessing an organization’s cyber resilience.
5.4 - 17

BlackNoise BAS
WebSelf-hosted5.3 - 18
PurpleSharp
PurpleSharp is a free, open-source C# tool for simulating adversary activity in Windows Active Directory environments.
Self-hostedWindows5.2 - 19
ShadowBreach
ShadowBreach is an AI-enabled cyber operations platform for planning, carrying out, and documenting attack activity within a local environment.
5.2 - 20
Keysight Threat Simulator
WebLinux4.9