Best Keepnet Labs Email Threat Simulator Alternatives & Competitors in 2026

Pentera RansomwareReady™

Automated ransomware attack emulation platform for defense validation

CovertSwarm Ransomware Attack Simulation

Ransomware attack simulation service to test security defenses and response

NetSPI Detective Controls Testing

Validates detective security controls through attack simulations and testing

SECNORA Attack & Breach Simulations

Red/Blue/Purple team & automated breach simulation service by SECNORA.

MazeBolt RADAR

Continuous DDoS testing platform that validates defenses via nondisruptive sims.

Security Validation Platform

Security validation platform that simulates attacks to test security controls

SightGain Automated Cybersecurity Assessments

Automated platform for testing cybersecurity controls against real threats

EDR Healthcheck

Validates EDR detection capabilities through autonomous penetration testing

BreachBits BreachRisk™

AI-powered cyber risk emulation platform for insurance & enterprise.

HERCULES SecDDoS

Cloud-based DDoS attack simulation & monitoring platform for defense testing.

Prelude Security Control Validation

Continuous security control validation platform testing EDR against adversary TTPs.

Ridge Security RidgeBot ACE

Adversary emulation tool that validates security control effectiveness via MITRE ATT&CK.

rThreat

Platform for simulating known/unknown threats to test security controls.

AttackIQ Adversarial Exposure Validation

Continuous security control validation platform using adversary emulation

APT Simulator

APT Simulator is a tool for simulating a compromised system on Windows.

ZAIUX ZAIUX® Evo

SaaS BAS platform automating C2 attacks with AI-driven remediation plans

SafeBreach Exposure Validation Platform

Exposure validation platform combining BAS and attack path validation (CART)

Pentera Pentera Platform

Automated security validation platform for testing attack surfaces continuously

SafeBreach Validate

Breach and attack simulation platform for testing security controls

GoSecure Titan® Adversarial Simulation

Human-led adversary emulation service testing detection & response capabilities

Filigran OpenAEV

Open-source threat-informed exposure validation platform for attack simulation

Raxis Breach and Attack Simulation

Human-led breach and attack simulation service for security control validation

Cymulate This Page Can't Be Found

Breach and attack simulation platform for security validation

DeepKeep Automated AI Red Teaming

Automated AI red teaming platform for testing GenAI apps, models & agents

Mitigant Cloud Attack Emulation

Cloud attack emulation platform for validating AWS security controls

IDappcom TrafficIQ Professional

Windows platform for auditing network security defences via custom PCAP replay.

SCYTHE Managed BAS Service

Managed adversarial emulation & validation service for continuous security testing.

Skyhawk Breach and Attack Simulation

Cloud BAS tool that continuously simulates attacks to identify exploitable paths.

Skyhawk Red Team-as-a-Service

Continuous AI-based cloud red teaming via digital twin simulation.

Avydos DDoS Threat Simulation

Self-service cloud platform for controlled DDoS simulation and resilience testing.

RedMimicry

Breach and attack emulation platform that mimics real threat actors.

Infection Monkey

An open-source security tool that simulates network breaches by self-propagating across data centers to test organizational resilience against lateral movement attacks.

MITRE Caldera™

MITRE Caldera™ is an automated adversary emulation platform built on the MITRE ATT&CK framework that supports red team operations and incident response activities through a modular C2 server and plugin architecture.

Network Flight Simulator (flightsim)

A utility to generate malicious network traffic for security evaluation.

Adversary Emulation Library

A library of adversary emulation plans to evaluate defensive capabilities against real-world threats.

Dorothy

Dorothy is a tool to test monitoring and detection capabilities for Okta environments, with modules mapped to MITRE ATT&CK® tactics.

Red Team Automation (RTA)

A Python-based framework that generates evidence of MITRE ATT&CK tactics to help blue teams test their detection capabilities against simulated malicious activities.

event-generator

A testing tool that generates suspect actions to validate and test Falco runtime security monitoring rulesets.

AutoTTP

AutoTTP automates complex attack sequences and testing scenarios for regression tests and research using frameworks like Empire, Metasploit, and Cobalt Strike.

Splunk Attack Range

An open-source platform that builds instrumented environments, simulates attacks, and integrates with Splunk for detection rule development and testing.

Metta

Metta is an information security preparedness tool for adversarial simulation.

Amazon GuardDuty Tester

A collection of scripts and guidance for generating proof-of-concept Amazon GuardDuty findings to help users understand and test AWS security detection capabilities.

Leonidas

A framework for executing cloud attacker tactics, techniques, and procedures (TTPs) that can generate APIs, Sigma detection rules, and documentation from YAML-based definitions.

Stratus Red Team

A cloud-focused attack simulation framework that provides granular, self-contained offensive techniques mapped to MITRE ATT&CK for red team exercises.

Caldera

Caldera is a cybersecurity framework by MITRE for automated security assessments and adversary emulation.