# Phishing Campaign Uses Invisible Unicode to Bypass Email Filters

Attackers sent millions of phishing emails that use invisible Unicode characters to evade security filters. The hidden characters allow malicious content to appear legitimate while avoiding detection. This highlights an evolving evasion technique that could increase the success rate of email-based attacks.

**Importance:** 4/5

## Sources

### Security
- [The Hacker News](https://thehackernews.com/2026/09/phishing-campaign-sends-millions-of.html) — Fri, 04 Sep 2026 21:27:15 +0530