Fortra® Security & Trust Center

Blog

April 2026 Patch Tuesday Analysis

Today’s Patch Tuesday Alert addresses Microsoft’s April 2026 Security Updates. The FIRE team is actively working on coverage for these vulnerabilities and expect to ship that coverage as soon as it is completed.
Blog

Fortra Discovers Datto Living Off the Land Binary

Fortra researchers identified an active phishing campaign that delivers a Remote Access Trojan by abusing Datto’s legitimate RMM platform as its command-and-control channel, giving attackers persistent, full remote access while blending into normal enterprise traffic. The campaign relies on social engineering rather than exploits and is difficult to detect because malicious activity is tunneled through trusted Datto RMM infrastructure over HTTPS.
Guide

The Browser Extension Threat Guide

This guide provides an overview of the browser extension threat landscape, including detection and threat hunting guidance with recommendations on specific response actions and general mitigation strategies.
Blog

March 2026 Patch Tuesday Analysis

Today’s Patch Tuesday Alert addresses Microsoft’s March 2026 Security Updates. The FIRE team is actively working on coverage for these vulnerabilities and expect to ship that coverage as soon as it is completed.
Blog

Threat Actors Abuse GitHub Notifications to Deliver Vishing Attacks

Executive SummaryGitHub email notifications are being abused to deliver vishing content, according to findings from the Fortra Intelligence and Research Experts (FIRE) team. Vishing, or voice phishing, is a type of social engineering attack in which threat actors attempt to trick their victim into revealing personal information over a phone call or voice message, often beginning with an initial...
Security Advisory

Denial of Service in CLFS.sys

This vulnerability is caused by CWE‑159: Improper Handling of Invalid Use of Special Elements, which leads to an unrecoverable inconsistency in the CLFS.sys driver. This condition forces a call to the KeBugCheckEx function, allowing an unprivileged user to trigger a system crash. Microsoft silently fixed this vulnerability in the September 2025 cumulative update for Windows 11 2024 LTSC and...
Blog

BEC Global Insight Report: January 2026

Executive SummaryThe findings in this report come from the results of active defense engagements with BEC threat actors. Every month, Fortra Intelligence & Research Experts (FIRE) conducts hundreds of these engagements to collect comprehensive intelligence about BEC tactics and trends to help better understand how the BEC threat landscape is evolving. The primary findings for January 2026...