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Brad Larsen

PROFILE

Brad Larsen

Worked on backend reliability and security features for trufflesecurity/trufflehog and praetorian-inc/praetorian-cli, focusing on robust API integration, error handling, and data ingestion. Delivered JWT detection and verification with OIDC Discovery, implemented custom HTTP clients to block local IPs, and enhanced observability through HTTP instrumentation. Improved CI stability by ensuring deterministic detector outputs and expanded data pipeline support by adding NDJSON/JSONL input processing. Addressed bugs in Python usage examples and verification logic, contributing to maintainable, testable code. Leveraged Go, Python, and protobuf, emphasizing concurrency, security, and clear documentation to support automation, CI workflows, and scalable security scanning.

Overall Statistics

Feature vs Bugs

43%Features

Repository Contributions

8Total
Bugs
4
Commits
8
Features
3
Lines of code
2,270
Activity Months6

Your Network

57 people

Work History

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026: Delivered NDJSON/JSONL input support for TruffleHog via the json-enumerator, enabling scanning of streaming NDJSON data with two content forms (data as UTF-8 string or data_b64 as base64) and associated metadata. Implemented CLI integration and validation, enabling users to pipe or process NDJSON inputs without intermediate disk writes (e.g., using process substitution or named pipes). Also improved maintainability by clarifying json-enumerator comments to reflect data handling accurately. This work expands data ingestion flexibility, increases scanning coverage for streaming pipelines, and accelerates onboarding for data-heavy security workflows.

January 2026

2 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for trufflesecurity/trufflehog. Focused on enhancing detector security, reliability, and observability with minimal surface area changes and clear traceability to commits. Key features delivered: - Detector Security and Reliability Enhancements: Reworked the JWT detector to block local IPs, added HTTP instrumentation to support monitoring, and replaced the default HTTP client with a custom detector HTTP client to avoid using local addresses across detectors. This improves security posture and runtime reliability in distributed detector deployments. Commits contributing to this work include 728d71fbb3a928e64f29ee19c823aa679b33b028 (Rework JWT detector to better block local IPs; add HTTP instrumentation) and 913d7a0691febedaacd5c874672bdcbb62c48abe (Switch out default HTTP client; use DetectorHttpClientWithNoLocalAddresses; fix staticcheck nits). Major bugs fixed: - Reduced local-address leakage and potential exposure by switching from the default HTTP client to a detector-specific client (DetectorHttpClientWithNoLocalAddresses), thereby increasing isolation and reliability. - Implemented instrumentation improvements to enable better observability and monitoring of detector behavior, aiding faster triage and incident response; addressed staticcheck nits to improve code quality. Overall impact and accomplishments: - Strengthened security and reliability of the JWT detector across all detectors, leading to lower risk of internal address leakage and improved monitoring/telemetry. - Improved maintainability and consistency in the HTTP client usage pattern across detectors, simplifying future enhancements and audits. - Demonstrated end-to-end delivery of a security-critical feature with clear traceability to commits and measurable impact on security posture. Technologies/skills demonstrated: - Go programming, concurrency considerations, and detector architecture - Custom HTTP client design to avoid local addresses - Instrumentation and observability integration for monitoring detector health - Code quality improvements and static analysis readiness Business value: - Reduced risk exposure from local IP leakage - Faster detection and triage through enhanced observability - More maintainable detector codebase enabling quicker future iterations

November 2025

1 Commits • 1 Features

Nov 1, 2025

Monthly work summary for 2025-11 focusing on a security feature delivery and code quality improvements for trufflehog. Delivered a generic JWT detection and verification mechanism with OIDC Discovery to fetch public keys, enabling robust token validation across environments. Cleanups and refactors were performed to improve readability and maintainability.

September 2025

1 Commits

Sep 1, 2025

September 2025 monthly summary for trufflesecurity/trufflehog: Delivered reliability and determinism improvements by fixing nondeterministic detector results ordering, reducing flaky tests and improving CI stability.

August 2025

1 Commits

Aug 1, 2025

August 2025 monthly summary for repository trufflesecurity/trufflehog focused on reliability improvements in the verification pipeline. Implemented robust error handling across verification detectors to ensure HTTP request/response errors propagate correctly, preventing misclassifications of findings. Fixed a logic issue in Box OAuth verification, addressing a typo and improving verification accuracy.

June 2025

1 Commits

Jun 1, 2025

June 2025 monthly summary for praetorian-cli: focused reliability improvements driven by a targeted bug fix that strengthens error handling and correctness of a Python usage example. A single commit addressed two issues: an invalid string escape in the Python example and unhandled exceptions when the Chariot API returns an HTTP error. The change enhances CLI robustness, reduces runtime failures, and improves developer experience for automation and CI workflows.

Activity

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Quality Metrics

Correctness91.2%
Maintainability85.0%
Architecture87.6%
Performance82.6%
AI Usage27.6%

Skills & Technologies

Programming Languages

GoMarkdownPython

Technical Skills

API IntegrationAPI developmentAPI integrationBug FixBug FixingCLI DevelopmentCode ReviewDocumentationError HandlingGoGo DevelopmentHTTP client managementHTTP instrumentationJSON handlingJWT

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

trufflesecurity/trufflehog

Aug 2025 Feb 2026
5 Months active

Languages Used

Go

Technical Skills

API IntegrationError HandlingVerification LogicBug FixingGo DevelopmentTesting

praetorian-inc/praetorian-cli

Jun 2025 Jun 2025
1 Month active

Languages Used

MarkdownPython

Technical Skills

Bug FixCLI DevelopmentError Handling