Vulnerabilities and Exploits Helldown Network Breach Ransomware Zyxel Vulnerabilities and Exploits Helldown Ransomware Outfit Linkd to Zyxel's Firewall Exploits Zyxel Firewalls have become a common target in recent hacks, with attackers exploiting a critical flaw to propagate the malicious Helldown ransomware. The German CERT (CERT-Bund)... Read more »