Source site:
Source: https://www.techradar.com/news/zyxel-says-its-firewall-and-vpn-devices-have-critical-security-flaws-so-patch-now
Source: https://www.techradar.com/pro/security/zyxel-says-multiple-nas-devices-suffering-from-cybersecurity-flaws
Source: https://www.techradar.com/pro/security/zyxels-new-high-performance-firewall-keeps-businesses-fast-and-secure