GK Data LLC is an offensive security company based in Blaine, Minnesota and led by Garrett Kohlrusch. The practice focuses on finding exploitable issues in websites, APIs, mobile applications, cloud environments, and networks before attackers do.
Garrett brings a bug bounty and responsible disclosure background into consulting work: recon-heavy testing, manual validation, careful impact demonstration, and reports that developers can actually use.
Custom AI agents support advanced reconnaissance, correlation, and documentation strategy, but all meaningful validations are performed manually. GK Data is intentionally small and operator-led, which means clients work directly with the person doing the testing and recommendations are shaped around the system in front of us.