Skip to content
View larrypeseckis's full-sized avatar

Block or report larrypeseckis

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
larrypeseckis/README.md

Larry Peseckis

AI / Cloud Security Architect · DoD Cleared · CISSP Candidate

Security at the intersection of offense, defense, cloud, and AI.

Thirty years of mission-critical systems in defense and aerospace. Now building at the intersection of frontier cyber risk, cloud security architecture, red/blue team operations, and LLM safety. The Integration Thesis: offense, defense, cloud, and AI security are one discipline viewed from different angles. The portfolio here is what happens when those angles start talking to each other.


Current Focus

  • Frontier cyber risk evaluation — taxonomies, eval sets, LLM-as-judge reliability, and human-grading comparisons
  • AI-assisted cyber request classification and model-policy decision aids
  • LLM attack surface mapping and prompt injection corpus analysis
  • Cloud security architecture and DevSecOps security controls
  • Red/blue/purple team practice documented as reusable detection engineering

Flagship Work

A four-tier model-policy taxonomy for AI-assisted cyber requests, mapping uplift, autonomy, authorization verifiability, and cumulative capability transfer. Built as a decision aid for evaluators, red teams, and policy reviewers. Aligned with cross-framework thinking from the Frontier Model Forum, Microsoft's capability tiers, OpenAI's Preparedness Framework, and the forming regulatory landscape.

A 57-prompt labeled eval set operationalizing the taxonomy. Spans allowed, dual-use, high-risk, and disallowed tiers with over-refusal traps, boundary cases, multi-turn assembly tests, and a scorer harness comparing LLM-as-judge verdicts with blind human grading. Pilot finding: zero measured over-refusal on the set; LLM judge abstained on the four most severe Tier 4 prompts — a coverage failure in single-judge evaluation.

A five-lane model for how a safety router should explain a reroute to a benign user without handing the trigger to an attacker. Core finding: disclosure granularity should track inverse oracle risk. Only the restricted-content lane earns strong redaction — and hiding it isn't enough unless content firing is observationally equivalent to it not firing.

A confidence-aware Python/Postgres pipeline extracting MITRE ATT&CK technique mentions from CISA and DFIR Report threat intelligence for trend analysis. Wilson confidence intervals for honest precision reporting. First finding: cross-source citation patterns reveal the vantage point of the reporting organization as much as they reveal adversary behavior.

A Burp Suite Community Edition extension that exposes Burp's HTTP capabilities as a localhost REST API, closing the $475/year gap between Community and Professional for practitioners who need scripted automation. Validated across 7 PortSwigger Web Security Academy labs, 250 bridge calls, zero GUI fallbacks.

300+ documented red team, blue team, cloud, DFIR, and LLM security labs with attack chains, detection engineering, and lessons learned. Spans TryHackMe, HackTheBox, and LetsDefend. The habit that made the CJCA report possible.


Credentials

AI / Cyber / Security — CompTIA SecAI+, SecurityX, CySA+, PenTest+, Security+, Cloud+, Project+, Network+, Server+, A+ · ISC2 CC, SSCP · CISSP (exam July 2026) · CyberSec First Responder CFR-410

Infrastructure / Labs — ITIL 4 Foundation · LPI Linux Essentials · TryHackMe SEC1, PT1, SAL1, AI1 · HackTheBox CJCA

Education — B.S. Cybersecurity and Information Assurance, Western Governors University (expected Dec. 2026) · Excellence Awards: Applied Cybersecurity, Legal Issues in Information Security


Find Me

larrypeseckis.ai · LinkedIn · Frontier Cyber Risk Taxonomy

Pinned Loading

  1. frontier-cyber-risk-taxonomy frontier-cyber-risk-taxonomy Public

    Four-tier model-policy taxonomy for AI-assisted cyber requests, mapping uplift, autonomy, authorization, and cumulative capability transfer.

  2. frontier-cyber-risk-eval frontier-cyber-risk-eval Public

    A four-tier taxonomy of cyber assistance for frontier models, a 57-prompt eval set that operationalizes it, and an LLM-as-judge scorer with a blind human-comparison harness. Includes a pilot run th…

    Python

  3. safety-router-transparency safety-router-transparency Public

    A design framework and evaluation set for how a model-routing safety layer should explain itself to a benign user, without disclosing the trigger to an adversary.

  4. attck-pulse attck-pulse Public

    Pipeline extracting MITRE ATT&CK technique mentions from public threat intelligence reports for trend analysis

    Python

  5. burp-cc-bridge burp-cc-bridge Public

    REST API automation for Burp Suite Community Edition. Drop-in Java extension exposing send/repeat/history endpoints over a local HTTP API.

    Java 6

  6. ctf-rooms ctf-rooms Public

    300+ documented red team, blue team, cloud, DFIR, and LLM security labs with attack chains, detections, and lessons learned.