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Notes on business ownership, management, technology, and lessons from the work.
I Thought My Books Were Fine. Then AI Started Asking Questions.
An AI-assisted month-end close uncovered roughly $10,000 in payment discrepancies. The bigger surprise was what it suggested about running a business.
When AI Started Doing the Work: Lessons From Refreshing Our Website
An overdue website refresh changed how I think about AI—from a tool that gives me instructions to something I can delegate work to, with direction and review.
When Cybersecurity Is Really a Management Problem
Mark Su explores how access, retention, data collection, and workflow decisions shape cybersecurity risk, with six questions for professional firm leaders.
About Mark

I'm the owner and CEO of IT Assure. I write about the practical lessons of owning, operating, and improving a business.