Piotr Krzyzek

The Riskiest Part of Shutting Down a Digital Business Is the "Can I Just Cancel This?" Email

A 10pm vendor renewal email from an exhausted founder almost ended fifteen years of customer data. The riskiest part of shutting down a digital business is rarely the security stack. It is the trusting click. Here is the phased plan that kept her out of trouble.

Someone Just Weaponized Google Docs to Spam Me: The Cold Outreach Tactic That Bypasses Every Spam Filter

A cold sales pitch disguised as a Google Docs notification. How the tactic works, a five-year timeline of Google's failed fixes, and a complete protection guide for founders and business owners.

Piotr Krzyzek © 2026