Silmaril

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

• 
  Aum Upadhyay· Founder

  Co-Founder & CEO at Silmaril. I built the security and privacy framework at AWS that prevented over $1.8B in damages. Now I bring that same defensive mindset to Silmaril, working with customers to ship prompt injection defense.

  LinkedIn ↗Twitter ↗
• 
  Eduardo Velasco· Founder

  Co-Founder & CTO at Silmaril, the world's first self-healing prompt injection defense. I prove the risks are real by finding exploits myself. I chained a prompt injection into root access inside ChatGPT. Ex-Amazon tech lead specializing in low latency ML models that generated $400M in annual revenue.

  LinkedIn ↗Twitter ↗

Product launches · 1 launch

• Silmaril: Self-healing Prompt Injection Defense ↗▲ 21Apr 13, 2026

  Block 2x more attacks with 10x lower latency.

Change history · none recorded