Company Overview
Snapshot
Founded in June 2024 by Netanel Rubin, Rein Security operates with 1–10 employees. In January 2026, Rein Security secured its seed funding round.
Business overview
Rein Security provides an agentless application security platform designed to offer CISOs and AppSec teams real-time visibility into how applications operate in production. Its core technology correlates every request, response, resource, API, and line of code to identify validated risks across API security, SCA reachability, detection and response, and AI/MCP protection. The company serves enterprises such as Lemonade and HiBob, operating within the Cyber Security sector, specifically focusing on Application & Website Security.
Strategic signal
In February 2026, Rein Security released "The Great AppSec Reality Check" report, highlighting that 76% of security professionals lack the necessary production insight to secure modern applications. This report underscores the critical market need for solutions like Rein Security's platform, validating its focus on providing real-time production visibility and actionable risk insights to address a significant industry challenge.
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