Seal Security is an application security company founded in 2022, with roots in Israel's Unit 8200 intelligence unit. The company has raised $20 million in Series A funding led by Vertex Ventures Israel, and its platform is used by Fortune 500 organisations including PayPal and BigID.
The company's core product is an AI-powered AppSec Remediation Agent that plugs directly into CI/CD pipelines. Rather than forcing version upgrades - which carry the risk of breaking changes - the platform replaces vulnerable open-source libraries with "sealed" counterparts that retain the same version while eliminating the underlying security flaw. Fixes are human-vetted before delivery, targeting transitive dependencies and end-of-life environments that are typically difficult to patch through conventional means. The platform supports Java, Python, JavaScript, Go, and PHP ecosystems.
Seal Security's approach is aimed at organisations that need to meet compliance obligations such as FedRAMP and PCI DSS, where unresolved open-source vulnerabilities can create regulatory exposure. By automating what has traditionally been a manual patch-management workflow, the platform is designed to reduce the backlog of open vulnerabilities without requiring engineering teams to undertake risky dependency upgrades.
The company operates across Israel and the United States, serving enterprise customers in financial services, data security, and regulated industries.