Open Source Alternatives to Mimecast

Snyk is a developer security platform that helps software teams find and fix vulnerabilities in code, open source dependencies, containers, and cloud infrastructure.

Agentic endpoint security for AI coding, providing visibility, governance, and real-time protection.

Open-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.

Secures the software supply chain with verifiable builds and open-source security tooling.

Open-source compliance solution for startups to achieve SOC 2, ISO 27001, and HIPAA.

ARMO provides an open-source Kubernetes security platform, Kubescape, for end-to-end security from development to production.

Open-source, AI-driven endpoint investigation tool for security teams.

Open-source identity and authorization services for applications, offering composable and scalable IAM solutions.

Ark Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.

A global non-profit foundation dedicated to improving software security through open community collaboration.

A production-ready, lightweight open-source virtualization platform for environments from homelabs to hyperscale infrastructure.

Logz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.

Cisco's internal incubation engine for emerging technologies like agentic AI and quantum networking.