Independent Security ResearchEst. MMXXV · Orange County, California
Northgate CryptographySecurity Research & Engineering

David Jensen

Offensive-security practitioner, independent inventor, and founder of Northgate Cryptography — working across adversary emulation, continuous trust, and autonomous-agent authorization.

Role
Founder · independent researcher
Discipline
Offensive security · agentic-AI security · continuous trust
Portfolio
3 pending U.S. patent families
§ 01
Practice

An offensive-security practitioner who also designs and builds the defensive systems.

David Jensen is an offensive-security practitioner, independent inventor, and founder of Northgate Cryptography whose work spans adversary emulation, security architecture, continuous identity assurance, privacy-preserving communications, and authorization controls for autonomous AI systems.

He has built and led enterprise offensive-security capabilities within a large regulated healthcare environment — including full-scope penetration testing, assumed-breach exercises, adversary emulation, detection validation, and executive risk communication.

§ 02 Independent research

Three pending U.S. patent families.

01
Runtime authorization of autonomous AI agents
Continuous constraint of delegated agent authority through changing trust signals, permission tiers, authorization-artifact lifecycle controls, pre-execution enforcement, delegation-chain propagation, and fail-secure operation.
02
Continuous biometric authentication in zero-trust
Continuous reassessment of identity assurance during active sessions — adaptive thresholds, dynamic privilege adjustment, presentation-attack detection, and risk-responsive authentication.
03
Multimodal biometric security & deception analysis
Machine-learning architectures combining visual, biometric, behavioral, contextual, and cross-platform signals to assess identity and deception risk under uncertainty.

He also researches how continuous-authentication systems should be evaluated statistically, and how autonomous systems change conventional assumptions around identity, delegation, and least privilege.

See the full portfolio →

§ 03 Background

Education & credentials.

Education
M.S., Cybersecurity & Information Assurance — Western Governors University
M.S., Computer Science (AI/ML) — Western Governors University
B.S., Computer Science — Chapman University
Focus
Offensive security, agentic-AI security, continuous trust, applied cryptography
Prior service
Search & rescue, structural firefighting, high-angle & confined-space rescue; wildland firefighter, special response police diver, and scuba instructor
  • CISSP
  • OSCP
  • OSEP
  • SANS SEC660
  • CRTP
  • OSWP
  • AWS ML Engineer
  • CEH
  • CHFI
  • CNDA
  • PenTest+
  • Security+