Alex DeFreese
Staff Software Engineer

Alex DeFreese (OSCP) is a Cosmos Staff Software Engineer. He focuses on web application penetration testing, social engineering, and internal network penetration testing. Outside of client-facing projects, Alex's personal research encompasses email spoofing and technical controls for defending against social engineering.

Subject Matter Expertise:

• AI/LLM Security
• Social Engineering
• Email Spoofing
• DMARC
• Single Sign On apps
• Network
• Appsec
• Web App
• Red Teaming
• Golang