[2026 February Notification] USG FLEX H series Security Excellence – Tolly Report

Zyxel_Avani

Recently, Tolly Enterprises released an independent test report (Report #225150) comparing the Zyxel USG FLEX H Series with the Ubiquiti Dream Machine SE (UDM SE) in terms of malware protection effectiveness. Here’s a summary of the key insights for IT and cybersecurity professionals.

📝Objective of the Test

The goal was to evaluate how well each device can detect and block malicious software, including trojans, ransomware, and other malware threats. The test involved downloading verified malicious samples through the same network setup to measure each firewall’s detection and blocking performance.

🛡️Key Results

Product	Average Malware Blocking Rate
Zyxel USG FLEX H series	~91.6%
Ubiquiti Dream Machine SE (UDM SE)	~2%

💡Takeaways

• The USG FLEX H Series, when paired with the full UTM (Unified Threat Management) license, demonstrates excellent malware blocking performance, effectively protecting networks from a wide range of threats.
• The UDM SE, which lacks a complete UTM suite, shows significantly lower blocking capability under the same test conditions.

👉Why the Difference?

• Zyxel USG FLEX H series: Equipped with a full UTM package (including anti-malware, intrusion prevention, content filtering, and application control), it’s designed for enterprise-grade network security.
• Ubiquiti UDM SE: While convenient for small setups, it lacks a complete anti-malware and sandboxing system, limiting its effectiveness against sophisticated threats.

✨Conclusion

For organizations prioritizing network security and malware protection, the Tolly report clearly shows that the Zyxel USG FLEX H series outperforms the UDM SE. Enterprises looking for robust, comprehensive protection should consider a firewall with a full UTM suite like the USG FLEX H.

📄 Full Tolly report 👉 Zyxel USG FLEX H vs UDM SE

💭 What’s Your Experience?

Have you deployed the USG FLEX H or UDM SE in your setup? Share your thoughts on how they perform and any tips for maximizing network security.