Cymulate Platform vs PurpleSharp

Cymulate Platform continuously validates security controls against real-world threats and provides guidance for improving defenses. Its modules include Exposure Validation, Auto Mitigation, CTEM, Detection Studio, Threat Studio, and Cymulate Cowork. Cymulate says its threat library covers MITRE ATT&CK and that new simulations for US-CERT advisories have a 24-hour SLA. Vero AI tailors threat assessments to a customer’s environment, helps prioritize findings, and supports mitigation creation. Listed partners include AWS GuardDuty, CrowdStrike, Splunk, and Anthropic Claude. The platform is designed for security operations, detection engineering, red teams, and exposure management teams, including mid-market and enterprise organizations. A free trial provides partial platform simulation for 14 days unless a quote specifies another period; pricing is on request and depends on package, assets, and scenarios. Cymulate says the platform runs on a private AWS tenant across multiple regions. It lists security certifications and compliance frameworks, protects traffic with TLS 1.2 or higher, and encrypts stored data with AES-256. Customers must provide equipment, infrastructure, servers, and third-party software or licenses required by the platform prerequisites.

PurpleSharp is a free, open-source C# adversary simulation tool for Windows Active Directory environments. It generates attack telemetry for detection teams building and testing analytics, checking detection resilience, locating visibility gaps, and identifying event-logging pipeline problems. Documentation maps 47 MITRE ATT&CK techniques across execution, persistence, privilege escalation, credential access, lateral movement, discovery, and defense evasion. JSON playbooks can combine techniques, define variations, and set technique-specific parameters. Local simulations run interactively after copying the PurpleSharp assembly to a host. Remote simulations use Windows SMB and RPC, requiring administrative credentials on the target plus network access to TCP ports 445 and 135. Scout tasks retrieve audit policy, event subscriptions, PowerShell logging settings, processes, and services. ATT&CK Navigator layers can be exported or imported as JSON playbooks. PurpleSharp is self-hosted on Windows, requires .NET Framework 4.5, and is licensed under BSD 3-Clause. The latest documented release is v1.3 from August 2021.