Act Security

3 stories about Act Security
Jonathan Langer

AI is making decades of security advice harder to ignore and easier to apply

11.09.26| Jonathan Langer
"Least privilege and zero trust have been goals for years," writes Jonathan Langer, co-founder and CEO of Act Security. "AI is what took away the option of putting them off, and what finally makes them practical to apply without breaking production."
צוות הפאונדרים של Act Security מימין עילי פלח יונתן לנגר איתי קירשנבאום ו סטפן גולדברג

After Medigate's $400 million exit, founders launch $60 million cyber startup from stealth

28.07.26|CTech
Seven months after Calcalist first revealed its funding, Act Security officially launches with a cloud security platform designed to eliminate the access pathways that AI-powered attacks increasingly exploit.
צוות הפאונדרים של Act Security מימין עילי פלח יונתן לנגר איתי קירשנבאום ו סטפן גולדברג

Medigate founders’ new cyber startup hits $60 million in funding months after launch

29.12.25|Meir Orbach
Act Security closes a rapid Series A only four months after a $20 million Seed round.