a
alexanderzack

Alexander Hearn

@alexanderzack

AI Security Specialist LLM Red Teaming and Prompt Injection Testing

Verenigde Staten
Engels
Sommige informatie wordt in het Engels weergegeven.
Over mij
I'm Alexander Hearn, a Cybersecurity Specialist at Handshake, where I red-team LLM systems. I earned a B.S. in Computer Science (Cybersecurity specialization) from the University of Maryland and hold a GISF certification. I help teams find and fix security weaknesses in their AI products: - System prompt hardening and prompt-injection testing - RAG evaluation test sets - Vendor security questionnaire completion - Expert-reviewed AI agent and MCP security assessments You get clear, prioritized findings so you know what to fix first and why. All work is AI-assisted, expert-reviewed delivery.... Lees meer

Skills

a
alexanderzack
Alexander Hearn
offline • 

Bekijk mijn diensten

AI-technologie advies
I will harden your ai chatbot system prompt against prompt injection
VanafUS$ 50 / projectMeer informatie
Databeleid en -bescherming
I will build your cmmc level 1 self assessment evidence package
VanafUS$ 400 / projectMeer informatie

Werkervaring

Handshake

Cybersecurity Specialist 1

Handshake

Jun 2026 - Present • 4 mos

Contract W-2 (via TCWGlobal) as a Cybersecurity Specialist 1 on Handshake's AI red team. I red-team LLM systems: probing for prompt-injection and jailbreak weaknesses, documenting findings, and helping product teams understand what to fix first.