SI

Silmaril

YC X26

San Francisco, US · Founded 2026 · 2 employees · 1 known investors

silmaril.dev ↗

Silmaril is a security monitoring and threat detection platform that protects enterprise systems by identifying and blocking malicious tool calls and prompt injection attacks.

Founders & leadership· Y Combinator alumni (X26)

Aum Upadhyayin𝕏Founder

Eduardo Velascoin𝕏Founder

Investors · 1

Y

Y CombinatorMountain View · $500K – $500K