Zyxel zero-day compromised 1,000 network switches

Zyxel patched a zero-day vulnerability in GS1900 series network switches that attackers exploited to compromise nearly 1,000 devices worldwide. The flaw allowed hackers to steal configuration files and credentials from affected switches. Organizations using Zyxel GS1900 switches should apply the patch immediately to prevent unauthorized access to network infrastructure and data theft.