Nebula is an open-source overlay networking tool that builds encrypted, peer-to-peer mesh networks without opening inbound firewall ports; it was built at Slack and is now maintained by Defined Networking.
IT tool directory
Explore security tools
Filter by deployment, source model and use case.
Refine results
64 results for “security”
NetBird builds a private, encrypted WireGuard mesh network between devices with automatic NAT traversal, offering a free self-hosted option and paid managed cloud plans.
NetFoundry, creator and maintainer of the open-source OpenZiti project, provides zero-trust overlay networking that removes open inbound ports and traditional VPNs, for site-to-site, OT/IoT, API, and AI-agent connectivity use cases.
Netmaker, from Gravitl, is an open-source platform for building WireGuard-based virtual networks, mesh VPNs, and site-to-site connectivity, with a free self-hosted community edition (Apache 2.0) and paid Team/Business/Enterprise cloud tiers.
OpenZiti is an open-source overlay networking framework for zero-trust connectivity, letting developers embed secure, outbound-only network access directly into applications via SDKs. NetFoundry sponsors the project.
Proofpoint provides email protection products for detecting and managing malicious messages and related risks.
SentinelOne's Singularity Platform delivers AI-powered EDR/XDR for endpoints, cloud workloads and identities, with autonomous detection, response and rollback.
Sophos offers firewall and endpoint products with administration through Sophos Central.
SuniAI was listed as Sunitech's AI offering, but sunitech.ch/ia now redirects to the general homepage with no distinct AI product description, so its scope needs direct vendor confirmation.
SuniArchiver was listed as Sunitech's email-archiving service, but sunitech.ch/archiver now redirects to the general homepage with no distinct product description, so its scope needs direct vendor confirmation.
Vectra AI applies AI-driven behavioral analysis to network, identity and cloud telemetry to detect and prioritize active attacks for SOC teams.
ZeroTier creates encrypted, software-defined virtual networks that let devices in different locations join the same virtual LAN, with a free tier for small networks and paid plans for larger ones.
Zscaler offers secure internet access and private-application access services with different traffic and policy paths.
Anavem publishes English-language coverage of cybersecurity, infrastructure, tools and technical topics.
Bishop Fox is an offensive security firm offering penetration testing, red team and social-engineering exercises, and continuous attack surface management through its Cosmos platform, serving numerous Fortune 100 clients.
BleepingComputer publishes cybersecurity and technology news alongside troubleshooting guides and community support forums.
Bugcrowd runs bug bounty, vulnerability disclosure and penetration-testing-as-a-service programs through a managed platform and vetted researcher community.
Cloudflare provides authoritative DNS, reverse-proxy services, CDN caching, web application firewall controls, and edge application tools.
CSO Online publishes security-leadership news, analysis and research, produced by Foundry (formerly IDG Communications) alongside sister titles CIO, Computerworld, InfoWorld and Network World.
CtrlAltNod publishes English, French and German coverage of cybersecurity threats, Microsoft/Windows systems, cloud infrastructure and IT tutorials.
Elastic Security brings SIEM and endpoint signals onto the Elasticsearch platform.
Elastic Cloud is Elastic's hosted Elasticsearch service, offered as fully managed Serverless or resource-based Hosted deployments across AWS, GCP and Azure, covering search, observability and SIEM/security use cases.
GitLab combines Git repositories, merge requests and CI/CD; security features and deployment choices depend on edition and plan.
Harness bundles CI, GitOps-based CD, feature flags, cloud cost management, security testing orchestration and other DevOps modules that can be adopted individually or as a platform.
CyberArk covers privileged and machine identity security. Palo Alto Networks completed its acquisition in February 2026 and now markets the platform under Idira.
0 tools selectedCompare selected