PRE-Crime™ preemptive cybersecurity

How Spreadsheets Create Security Risks After Delivery

June 12, 2026 / in Blog / by Zafar Khan, RPost CEO

Human Mis-Sends, Compromised Accounts, and AI uploads Are Turning Native XLS Files into Real Data Risks.

Rocky the Raptor here, RPost’s cybersecurity product evangelist. I’ve been thinking; there are a few file formats in business that have become so familiar that executives rarely pause to question them. The spreadsheet is one of them. 

Proxy Phishing is the New Front Door to Email Account Compromise

May 22, 2026 / in Blog / by Zafar Khan, RPost CEO

How Proxy Phishing Bypasses MFA Without Breaking It

There is a new front door into the enterprise, and cybercriminals are walking through it with stolen sessions, not just stolen passwords.