Peter Bryan
Senior Security Researcher Engineer at Microsoft
Greater Seattle Area United States
Summary
🤩
Rockstar🎓
Top SchoolPeter Bryan is a Senior Security Researcher/Engineer at Microsoft with seven years of experience building threat detection and response capabilities for enterprise customers. At MSTIC he both researches advanced adversaries and engineers practical tools—he’s a maintainer of MSTICPy and MSTICNb and contributed entity-explorer notebooks for Azure Sentinel to make threat hunting more accessible. His background spans government, managed SOC design, and product-facing security roles, giving him a rare combination of operational, architectural, and customer-facing expertise. He specializes in telemetry, authentication workflows, and data-defanging features that improve analyst efficiency. Based in Greater Seattle, he leverages open-source contributions to amplify impact across Microsoft and the broader security community.
7 years of coding experience
3 years of employment as a software developer
Bachelor of Science (BSc), Computer Science, Bachelor of Science (BSc), Computer Science at Aston University
English
Github Skills (14)
data-analysis10
pandas10
jupyter-notebook10
security-testing10
azure-sentinel10
security-scan10
python10
security10
apidoc9
threat-intelligence9
api9
it-security9
rest-api8
json8
Programming languages (5)
Github contributions (5)
Azure/Azure-Sentinel-Notebooks
Oct 2019 - Jan 2023
Interactive Azure Sentinel Notebooks provides security insights and actions to investigate anomalies and hunt for malicious behaviors.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:29 reviews, 130 commits, 77 PRs in 3 years 3 months
Contributions summary:Peter's primary contribution was the initial upload of "Entity Explorers" notebooks. These notebooks appear to be designed for threat hunting and security analysis within Azure Sentinel, focusing on exploring domains, URLs, and potentially other entities. The code differences reveal the creation of a new notebook for analyzing domains and URLs. The file names included indicate a focus on security analysis within an Azure environment.
behaviorshuntsecurityazure-sentinelmalicious
microsoft/msticpy
May 2019 - Jan 2023
Microsoft Threat Intelligence Security Tools
Role in this project:Back-end & Security Engineer
Back-end & Security EngineerContributions:1 release, 245 reviews, 297 commits in 3 years 8 months
Contributions summary:Peter's contributions primarily involved enhancing the capabilities of the `msticpy` tool, which is related to Microsoft Threat Intelligence and Security. Their work includes refactoring and updating components for improved functionality, specifically focusing on refining data query tools and the addition of new features to enhance support for the Windows and Linux security data collection, along with adding features for code de-fanging. Furthermore, contributions included upgrades to handle authentication and improve the ability to visualize and analyze the collected data.
security-toolssecuritythreatmicrosoftthreat-intelligence
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.