Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
AI-Generated Fraud Emails at Scale: Defending Against 1M Personalized Phishing Campaigns in 72 Hours
The Volume-Credibility Tradeoff Is Dead For years, defenders relied on a fundamental asymmetry in email-borne threats: attackers could have ...
Invisible Unicode Phishing: Detecting and Blocking ASCII Smuggling Lures in Your Email Security Stack
Introduction Threat actors are now embedding invisible Unicode characters into phishing emails — a technique known as ASCII smuggling — to c...
Invisible Unicode Tag Phishing Campaign Evading Microsoft 365 Email Filters: Detection and Blocking Guide
Introduction Microsoft's Security Research team is warning of an active, high-volume social engineering campaign that has pushed millions of...
ASCII Smuggling Moves to Phishing: Detecting Invisible Unicode Evasion in Email and Endpoints
Introduction A technique that emerged from the AI security research community — using invisible Unicode characters to smuggle hidden instruc...
Global Cybercrime Crackdown Nets 58 Arrests: Defending Your Organization Against BEC and Transnational Fraud Networks
Introduction Law enforcement agencies spanning 22 countries have concluded a coordinated crackdown on cybercrime networks operated by Africa...
DSA-6461-1: Debian Thunderbird Security Update — Detection and Remediation Guide for Defenders
Introduction Debian has released DSA-6461-1, a security update for the Mozilla Thunderbird email client distributed through Debian's stable ...
CVE-2026-73570: Zimbra Collaboration Suite Actively Exploited — CISA KEV Addition, Detection and Remediation Guide
Zimbra CVE-2026-73570 Enters the CISA KEV — Why Your Mail Infrastructure Is Now a Priority Target The U.S. Cybersecurity and Infrastructure ...
Critical Zimbra Collaboration Suite RCE Now Actively Exploited — Detection and Remediation Guide for Defenders
Introduction CERT Polska has issued an urgent warning that attackers have begun actively exploiting a critical remote code execution (RCE) v...
Social Engineering 3.0: Defending Against Autonomous AI Phishing Agents — Detection and Hardening Guide
Social Engineering 3.0: The Fight Moves to Agent Versus Agent For a decade, email security followed one model: scan the message, find someth...