Code Defender

Microsoft Disrupts 3 Phishing Kits Linked to Over 1 Billion Scam Messages

Microsoft and Health-ISAC, along with the Japan Cybercrime Control Center (JC3) and a coalition of private sector companies, such as Resecurity, Cloudflare, Oracle, Proofpoint, and TRM Labs, announced the disruption of three phishing kits, CoGUI (aka NX or FA), Haozi (aka Phoenix), and Iron Man System.

“Since January 2026, the threat actors behind these kits have been responsible for

  • October 15, 2026

Hackers Backdoor Nextcloud Servers Through Critical Flaw in Collabora’s Built-in CODE App

Attackers exploited a flaw in an optional Nextcloud app, Collabora Online – Built-in CODE Server, to plant web shells on Nextcloud servers. Three administrators reported the issue on GitHub, with the first logged attack on September 10.

A web shell is a small file that executes any command an attacker sends via a web request, with the rights of the web server account. The flaw

  • October 15, 2026

Cisco Warns of Active Attacks Exploiting New Critical Secure Email Gateway Vulnerability

Attackers are exploiting a critical flaw in Cisco Secure Email Gateway that lets a sender with no login write files to the appliance’s operating system, Cisco said in an advisory on Wednesday.

The attacker sends an email with a crafted attachment through the gateway and, if it succeeds, could then run commands as root. The appliance filters an organization’s email for spam, malware,

  • October 15, 2026