Distributed-system authorization
InterUSS DSS
Request-level authorization scopes for subscription notifications in the InterUSS Discovery and Synchronization Service.
// selected external contributions
Open Source Security
A curated set of upstream security and hardening work where the security boundary is visible in code. The emphasis is on validated changes and engineering evidence, not contribution volume.
Container isolation
gVisor
Isolation boundaries, networking, race conditions, checkpoint security, and protocol validation.
Model-serving media retrieval
vLLM
Security controls around multimodal media retrieval and shared connector policy.
Package extraction
Swift Package Manager
Archive extraction and symbolic-link boundary protection in package registries.
Cryptographic input validation
Tink
Strict JWK parsing and validation at a public cryptography-library boundary.
Protocol parsing
Google Bumble
Bluetooth protocol parsing and denial-of-service protections.
Detection engineering
Microsoft Sentinel
Detection content for suspicious network, identity, endpoint, and control-plane activity.
Research-driven remediation
Discovery continues into verification.
Vulnerability research and upstream engineering increasingly overlap in my work. When possible, the process continues past discovery into patch review, regression validation, and verification that the security boundary actually changed.