Silmaril logo
YC P26

Silmaril

Prompt injection defense that is self-healing

About

Silmaril is self-healing prompt injection defense for AI native applications and agents. It understands application context to block 2x as many threats as current SOTA defenses with 10x lower latency. Customers plug us into agentic frameworks like LangGraph with 5 lines of code. Silmaril has stopped $28M of damages for customers.

Founders

Family Office Investors

Altss tracks family office allocations to YC-backed companies. Request access to see which family offices have invested in Silmaril.

See family office activity

Industry & Focus

B2BSecurity