a
alexanderzack

Alexander Hearn

@alexanderzack

AI Security Specialist LLM Red Teaming and Prompt Injection Testing

États-Unis
Anglais
Certaines informations sont présentées en anglais.
À propos de moi
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.... Plus d’infos

Compétences

a
alexanderzack
Alexander Hearn
hors ligne • 

Voir mes services

Conseil en technologie de l'IA
I will harden your ai chatbot system prompt against prompt injection
De50 $US / projetPlus de détails
Gouvernance des données
I will build your cmmc level 1 self assessment evidence package
De400 $US / projetPlus de détails

Expérience professionnelle

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.