Business Email Compromise (BEC)

AI Email Security: How to Protect Email When AI Can Read, Summarize, and Act

October 13, 2026 / in Blog / by Zafar Khan, RPost CEO

AI is Rapidly Reshaping Email Threats, Defenses, and AI Agent Risk.

For years, the conversation around AI email security focused on a relatively simple idea: attackers are using AI to create better phishing emails, so defenders need AI to detect them. It’s no longer completely true now…

Secure Email for Business: What to Look for Before Choosing a Solution

August 21, 2026 / in Blog / by Zafar Khan, RPost CEO

Look Beyond Encryption to Find Email Security That Protects People, Content, Files, and Business Communications.

Email remains one of the main ways businesses exchange contracts, financial information, customer records, employee data, and other sensitive content. But choosing secure email for business is no longer simply a matter of finding a solution or tool that encrypts messages.

How Threat Intelligence Strengthens Email Security

June 19, 2026 / in Blog / by Zafar Khan, RPost CEO

Security Teams Get Earlier Warning Signs of Phishing, Impersonation, Account Compromise, & Invoice Fraud.

Threat intelligence often has a slightly glamorous (and serious) association with spying and national security activities. In email security, however, it’s slightly unglamorous; mostly involving the use of threat data, behavioral signals, sender context, domain reputation, message patterns, and recipient activity to judge whether an email is safe, suspicious, or dangerous. 

AI vs. Rule-Based Email Security: What Actually Changes for BEC Protection

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

How AI Improves What Rules Alone Miss.

Enterprises already know that the inbox is one of the easiest ways for attackers to get into the business. The real question is narrower: when vendors say they use AI-based email security, what actually changes compared with rule-based, traditional email security?

Cyber Pirates Find Silver in Real Estate and Gold in Tech Invoicing

May 16, 2017 / in Blog / by Zafar Khan, RPost CEO

Cyber pirates have found easy prey in real estate brokers, title agents and estate attorneys. Their emails are a treasure trove of information about pending transactions involving large wire transfers. Real estate buyers, eager to close the deal, blindly trust the email they receive and the advisors with whom they correspond.