Act Security

Overview

Act Security is a Tel Aviv cloud-security startup founded in 2025 by the medigate team. It sells an action-centric platform that reduces cloud access surfaces for humans, workloads, and AI agents.

Recent Developments

• 2026-07-28: Emerges from stealth with $60M total ($20M seed: Team8 + Bessemer + Hetz + Claltech; $40M Series A: Notable Capital + Startpoint + SVCI) and product launch (2026-07-28-act-security-pr-newswire)
• CEO jonathan-langer cites ~97% dormant cloud permissions from customer observations
• Extends least-privilege enforcement into ci-cd pipelines; compliance mapping NIST 800-53, PCI DSS, HIPAA

Info

Investor spelling: use Claltech (PR Newswire primary), not “Caltech” (SiliconANGLE typo).

Related

• oasis-security

• cyera

• nhi-security-consolidation

• cloud-security

• least-privilege

• ciem

• agentic-ai

• neo-security

• claroty

• medigate

• jonathan-langer

• team8

• bessemer-venture-partners

• notable-capital

• agentic-access-security

• ai-agent-security

Sources

• 2026-07-28-act-security-pr-newswire
• 2026-07-28-act-security-finsmes
• 2026-07-28-act-security-60m-agentic-access