AI Breach and Attack Simulation that adapts to your defences.
Nemesis
AI Breach and Attack Simulation that adapts to your defences.
Data verified Jun 2026
ADYour product here. Reach security decision-makers.Launch a campaignNemesis Description
Persistent Security is an EU-native cybersecurity company headquartered in Eupen, Belgium, building Nemesis, a Breach and Attack Simulation (BAS) platform with an AI Operator trained by reinforcement learning. Traditional BAS tools tell attackers what to expect by running static playbooks. Real adversaries don't read scripts. Our AI Operator probes customer environments the way an attacker would, adapting to every defence it meets, and getting smarter with every campaign. Nemesis runs continuous, MITRE ATT&CK-mapped attack campaigns and gives security teams board-ready evidence of what holds and what doesn't. A second deliberate design choice: we deploy agents on each distinct configuration in the environment (typically a small set of golden images), not on every individual endpoint. Every endpoint built from a given golden image shares the same software stack, patch level, EDR and group policy, so one validation point is representative of every endpoint built from that image. Time to first assessment drops from months to days. Operational overhead drops from thousands of agents to a handful. We are EU-native by design: DORA and NIS2 alignment is built into the platform, the team averages 15+ years of offensive security experience, and our pricing is structured to reach the under-served SME and mid-market segment that legacy BAS vendors price out. Today we serve customers across financial services, critical infrastructure, defence and healthcare, with 30+ MSSP partners covering DACH, BeNeLux, and the Nordics. We're currently raising our Seed round to scale the reinforcement-learning pipeline, expand the offensive research team, and saturate the European MSSP partner channel.
Nemesis FAQ
Common questions about Nemesis including features, pricing, alternatives, and user reviews.
Nemesis is AI Breach and Attack Simulation that adapts to your defences, developed by Nemesis by Persistent Security. It is a Threat & Vulnerability Management solution designed to help security teams with Continuous Testing.
Nemesis offers the following core capabilities:
1.Continuous breach and attack simulation
2.MITRE ATT&CK technique mapping
3.Security control validation
4.AI Operator
5.Ransomware readiness testing
6.Multi-tenant management for MSSPs
7.Agent-based deployment
Nemesis integrates natively with SIEM, EDR/XDR, API genérica. Integration support lets security teams connect Nemesis to existing SIEM, ticketing, identity, and notification systems without custom development.
Nemesis is deployed as a hybrid solution, suited to startup organizations looking to operationalize threat & vulnerability management. The commercial offering is positioned for production security operations with vendor support and SLAs.
Nemesis is built for security teams handling Continuous Testing. It supports workflows including continuous breach and attack simulation, mitre att&ck technique mapping, security control validation. Teams typically adopt Nemesis when they need to threat & vulnerability management capabilities integrated into their existing stack. Explore similar tools at https://cybersectools.com/alternatives/nemesis
Nemesis is a commercial Threat & Vulnerability Management solution. For detailed pricing information, visit https://aws.amazon.com/marketplace/pp/prodview-mczztqvpnlxhk or contact Nemesis by Persistent Security directly.
Popular alternatives to Nemesis include:
1.Cymulate This Page Can't Be Found - Breach and attack simulation platform for security validation (Commercial)
2.Security Validation Platform - Security validation platform that simulates attacks to test security controls (Commercial)
3.Prelude Security Control Validation - Continuous security control validation platform testing EDR against adversary TTPs. (Commercial)
4.Ridge Security RidgeBot - AI-driven platform for automated pentesting and security validation. (Commercial)
5.Ridge Security RidgeBot ACE - Adversary emulation tool that validates security control effectiveness via MITRE ATT&CK. (Commercial)
Compare all Nemesis alternatives at https://cybersectools.com/alternatives/nemesis
Nemesis is for security teams and organizations that need Continuous Testing. It's particularly suitable for enterprises requiring robust, commercial-grade security capabilities. Other Threat & Vulnerability Management tools can be found at https://cybersectools.com/categories/threat-management
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