Armadin, Assail, Cymulate and Horizon3.ai

About Assail

Assail sells Ares, an autonomous offensive security platform that tests applications, APIs, mobile apps and AI systems and shows what an attacker could actually reach.^[1]

Assail says Ares continuously tests applications, APIs, mobile apps, and AI systems as they change. Ares follows attack paths, exploits weaknesses, and proves what an attacker could actually reach. Coordinated AI agents extend testing capacity, and Ares tests authenticated applications through the customer's existing identity provider. Ares also tracks changes across known and shadow APIs and delivers the evidence behind each confirmed risk.^[3]

Assail describes Ares as combining autonomous red teaming, attack surface management, and Shadow AI discovery across web, API, mobile, and supported AI environments, with applicable MITRE ATLAS coverage. The Ares platform is powered by Assail's domain-adapted model for security reasoning and tool use.^[3][7]

On deployment, Assail says Ares can run within the customer's own infrastructure, even in disconnected environments. With Assail Anywhere, the entire platform, including the AI model, deploys on-premises, inside isolated and air-gapped networks, in the customer's own cloud, or through Assail's SaaS. Assail has also announced that it expanded Reaper's sovereign deployment architecture to AWS GovCloud and Google Cloud Assured Workloads.^[3]

Assail names Ares, Reaper, and Scorpion as the products taken to the fight. Reaper is described as autonomous offensive cyber operations built for military, federal, and intelligence missions.^[3]

Assail publishes industry pages for manufacturing, financial services, federal and state government, automotive, retail, and defense. In manufacturing, Ares validates systems such as ERP, MES, PLM, supplier portals, industrial APIs, and connected products. In financial services, Ares validates APIs, payment rails, mobile banking apps, and open banking integrations. For retail, Ares validates e-commerce web apps, mobile shopping apps, loyalty APIs, and gift card platforms. In automotive it covers telematics APIs, OTA infrastructure, and mobile companion apps.^{[4][5][6][9][10]}

Assail says its team brings 26 years of offensive security experience. Assail also publishes original research on attack techniques and the exploitation of AI and API surfaces. A customer, Branch, says Ares helps its security team increase penetration testing frequency and validate remediations faster.^{[1][2][3][4][5][6][8]}

About Cymulate

Cymulate sells the Cymulate Platform, which turns validation into a continuous, adaptive process of agentic cyber defense engineering. Cymulate says manual testing and control updates can take days to adapt to new threats. With Vero AI, Cymulate says it understands new threats, tailors validation to the customer's environment and turns findings into prioritized actions and automated security control updates.^[1][3][5][7]

Cymulate says its threat library has full MITRE ATT&CK coverage. The platform includes a daily feed of the latest threats with a 24-hour SLA for updated attack simulations for new US Cert threat advisories. Cymulate safely simulates real-world attack techniques across endpoints, networks, email, web gateways and cloud environments, with integrations to the controls and SIEM to prove both prevention and detection. Testing results create scorecards and benchmarks for security controls, MITRE ATT&CK coverage and specific threats. Cymulate combines breach and attack simulation, exposure validation and actionable remediation guidance in a single platform.^[1][3][5][8]

For exposure management, Cymulate says customers can automate validation as part of a continuous threat exposure management program. Cymulate lets customers push vendor-specific threat mitigation and behavior rules for immediate prevention or detection. Cymulate Auto Mitigate deploys relevant IoCs to security controls after teams follow remediation guidance for validated gaps. The Cymulate + Bitsight integration creates a closed loop between adversary intelligence and continuous exposure validation. In the Cymulate Platform, Bitsight provides relevant adversaries, campaigns, ransomware groups, APTs, TTPs, IoCs and targeting trends that are then used to focus testing and validation workflows.^[3][5][6][7]

On detection, Cymulate Detection Studio automates SIEM rule validation and detection tuning against real-world attacks. Cymulate says it transforms detection engineering from a manual, resource-intensive process into a continuous, automated lifecycle. Vero AI maps rules to attack scenarios, tests detection performance, identifies gaps and recommends or generates new rules. Cymulate generates Sigma rules and vendor-specific detection rules from validated gaps and provides guided tuning for the rules customers already have. Once deployed, rules are retested against the original attack scenario to confirm they improved detection. Cymulate simulations are production-safe: they reproduce the techniques and behavior of real attacks without executing actual malicious payloads or causing damage to systems or data.^[3][7][8]

Cymulate says it is built for security teams that need continuous validation across their environment, including security operations, detection engineering, red teams and exposure management teams. Cymulate says it supports organizations of all sizes, from mid-market to enterprise, especially those with complex or evolving security stacks. Cymulate says it empowers executives, security operations and the whole security program to continuously prove, prioritize and adapt security for specific threats and exposures.^[3][5][8]

Cymulate was founded by former IDF intelligence officers and cyber researchers. Cymulate says its platform runs on a private AWS tenant engineered for isolation, high availability, and redundancy across multiple regions. Cymulate does not collect or store sensitive Personal Identifying Information or PCI-DSS cardholder data. Cymulate states that data stored in databases and AWS is encrypted with AES-256. Cymulate has independent external auditor attestation across the Security, Availability, Confidentiality and Privacy Trust Services Criteria, and a public SOC 3 report.^[3][8]

About Horizon3.ai

Horizon3.ai sells NodeZero, a platform that autonomously executes real attack techniques in production environments so organizations can find exploitable weaknesses, fix them and verify the fixes.

Horizon3.ai describes the problem as one of effectiveness. Its pages say that security teams do not have a tools problem, and that many siloed security tools are not designed to work together. The company says the seams between those tools are blind spots that attackers exploit. Horizon3.ai says knowing a vulnerability exists is not enough and that teams need to know whether it is actually exploitable.^[5]

NodeZero is described as an autonomous platform capable of executing self-directed actions to achieve an objective. In pentesting, those objectives include becoming Domain Admin, compromising sensitive data and gaining access to critical systems. Horizon3.ai says NodeZero executes real attack techniques without agents or disruption. Horizon3.ai says its autonomous approach is delivered via multi-tenant SaaS.^[5]

Horizon3.ai describes a loop of hack, fix, verify and repeat. Its pages say teams should re-test to confirm a threat is gone after a fix. The company also describes a one-click verify tool in NodeZero that starts a targeted retest.^[6]

Endpoint Security Effectiveness shows how endpoint protections respond to real attack behavior, and NodeZero checks for EDR presence on each host. Horizon3.ai also sells pentesting for compliance, delivered by OSCP pentesters together with the NodeZero platform.^[6][7]

The service delivers a Penetration Test Report and a Fix Action Report.^[6]

Horizon3.ai says NodeZero serves customers from the Global 100 to a local hospital. Its pages also name banks, healthcare systems, energy providers, manufacturers, governments and defense contractors as organizations that rely on NodeZero.^[5][9]

Horizon3.ai was founded in 2019 and is headquartered in San Francisco, CA. Snehal Antani is its Co-Founder and CEO. The company describes its team as a mix of US Special Operations, US National Security and cybersecurity industry veterans.^{[4][6][7][8][10]}