Operation FlutterBridge: macOS Malvertising Campaign Spreads New FlutterShell Backdoor

Palo Alto Unit 42 are tracking an increasingly widespread malvertising campaign targeting macOS. This campaign appears to be the next stage of a previous campaign known as JSCoreRunner, which was first identified in August 2025. In recent months, the financially-motivated Read More …

Dissecting Sapphire Sleet’s macOS intrusion from lure to compromise

Microsoft Threat Intelligence uncovered a macOS‑focused cyber campaign by the North Korean threat actor Sapphire Sleet that relies on social engineering rather than software vulnerabilities. By impersonating a legitimate software update, threat actors tricked users into manually running malicious files, Read More …

North Korea-Nexus Threat Actor Compromises Widely Used Axios NPM Package in Supply Chain Attack

Google Threat Intelligence Group (GTIG) is tracking an active software supply chain attack targeting the popular Node Package Manager (NPM) package “axios.” Between March 31, 2026, 00:21 and 03:20 UTC, an attacker introduced a malicious dependency named “plain-crypto-js” into axios Read More …

Infiniti Stealer: A new macOS infostealer using ClickFix and Python/Nuitka

A previously undocumented macOS infostealer has surfaced during our routine threat hunting. Malwarebytes Labs researchers initially tracked it as NukeChain, but shortly before publication, the malware’s operator panel became publicly visible, revealing its real name: Infiniti Stealer. This malware is Read More …

Apple patches WebKit bug that could let sites access your data

WebKit vulnerabilities refer to security flaws in Apple’s web rendering engine, which powers Safari, Mail, and the App Store on iOS and macOS. What this means is that the CVE-2026-20643 vulnerability makes it possible for a malicious website to pretend Read More …

Malware in 2025 spread far beyond Windows PCs

If there’s one thing that became very clear in 2025, it’s that malware is no longer focused on Windows alone. We’ve seen some major developments, especially in campaigns targeting Android and macOS. Unfortunately, many people still don’t realize that protecting Read More …

New macOS malware chain could cause a major security headache

North Korean state-sponsored threat actors are targeting macOS users with new malware, utilizing a strategy that combines two popular approaches – fake job ads, and ClickFix, experts have warned. Security researchers Jamf confirmed they have spotted attacks in the wild Read More …

Mac users warned about new DigitStealer information stealer

This variant comes with advanced detection-evasion techniques and a multi-stage attack chain. Most infostealers go after the same types of data and use similar methods to get it, but DigitStealer is different enough to warrant attention. A few things make Read More …

Apple fixes critical font processing bug – update now

Apple has released important security updates to address a critical vulnerability in FontParser—the part of MacOS/iOS/iPadOS that processes fonts. Identified as CVE-2025-43400, the flaw was discovered internally by Apple and allows an attacker to craft a malicious font that can Read More …