Phishing Emails Hide Invisible Characters. Can AI Filters Catch Them?

Tech Unfiltered with Dr. Mike · Sep 6, 2026 · 5m

An ordinary-looking email can contain characters you cannot see. In this September 6, 2026 episode of Tech Unfiltered with Dr. Mike, we examine Microsoft's September 3 research and today's BleepingComputer coverage of business-financing phishing messages. The senders inserted invisible characters inside financial keywords, interfering with some word-recognition checks. This was filter evasion—not hidden commands instructing a chatbot. The reporting concerns earlier campaign activity, not an attack that began today. KEY TAKEAWAYS • The reported peak was up to 2.37 million messages per day, not…