Security News Feed

WordPress-Lücke „wp2shell“ wird angegriffen

Sicherheitspatch Grafana: Angreifer können sensible Daten abgreifen

„HollowByte“: Denial-of-Service-Lücke in OpenSSL

Kritische Sicherheitslücke: Schadcode kann auf Nginx-Server schlüpfen

Shark-Saugroboter: Sicherheitslücke ermöglicht Übernahme aus dem Netz

„wp2shell“: Kritische WordPress-Lücke erlaubt Codeeinschleusung über API

So einfach war Apples Hide my Email auszuhebeln

WordPress-Lücke „wp2shell“ wird angegriffen

iX-Workshop Advanced Kubernetes Security: Effektive Maßnahmen und Best Practices

heise devSec: Jetzt noch Frühbuchertickets für die Konferenz in Marburg sichern

Nextcloud: Cyberangriff auf Webserver mit ungeschickter Kommunikation

Suno-Datenleck: Have I Been Pwned ergänzt 55 Millionen Konten

The Real Cybersecurity Challenge is Operational Capacity

Operational capacity is becoming the new challenge for cybersecurity. Take a deep dive into the reasons why, and how to tackle it.

Why WatchGuard Is Investing Across the Frontier AI Ecosystem

WatchGuard's multi-model AI strategy equips defenders with frontier AI to outpace evolving cyber threats and strengthen security.

Beyond Security: How Complexity is Pushing Companies to the Brink

Cybersecurity is becoming a continuous, complex challenge. MSPs help scale operations, 24/7 monitoring, and response.

Why Now Is the Time to Replace Your VPN

Identity-based secure access replaces VPNs with Zero Trust, reducing risk, simplifying operations, and securing hybrid work through continuous verification.

Cut Through the Noise: Learn How to Spot the Threats That Matter

Discover how MDR and endpoint security help cut alert fatigue, improve threat detection, and enable faster response to today's stealthiest attacks.

Why Human Behavior Has Become Cybersecurity's Fastest-Changing Attack Surface

2026 Cyber Hygiene report: Cyber risk now hinges on employee behavior. Secure, low-friction tools and human risk metrics are key to reducing modern threats.

WatchGuard Goes Multi-Model on Frontier AI for Stronger MSP Defense

Participation in OpenAI's Daybreak program and Anthropic's Cyber Verification Program advances vulnerability research, security testing, and proactive threat defense.

Employees Drive Rising Cybersecurity Risk As Shadow AI and Unsafe Work Habits Surge, WatchGuard Global Survey Finds

New Research Highlights Growing Visibility Gap Between Employee Behavior and Organizational Security Controls.

WatchGuard Launches AI Innovation Challenge, Inviting MSPs to Help Shape the Future of AI-Powered Cybersecurity

Part of WatchGuard's $10M AI investment, the challenge will fund selected MSP ideas with up to $100,000 each, and one Grand Prize winner earns an exclusive VIP trip to WatchGuard Impact North America.

WatchGuard Appoints Vincent Hwang as Chief Product Officer to Accelerate Platform Strategy and AI-Driven Innovation

Former Fortinet, Cisco, and Bitdefender leader brings proven track record in scaling cybersecurity platforms, strengthening partner-driven growth, and shaping category-defining product narratives.

WatchGuard Named a Champion in the Omdia Global Cybersecurity MSP Ecosystems Leadership Matrix for Fourth Consecutive Year

Recognition highlights WatchGuard’s continued innovation in helping MSPs scale through its Unified Security Platform®, agentic AI, and expanded cloud security capabilities

WatchGuard Launches New High-Performance Firebox Appliances to Secure Modern Enterprise Networks

New Firebox appliances deliver ultra-high-speed security performance, enterprise resiliency, and simplified operations for MSPs, Campus, and distributed enterprise environments

Schwachstellen managen: Die besten Vulnerability-Management-Tools

Security-Infotainment: Die besten Hacker-Dokus

Der Kaufratgeber für Breach & Attack Simulation Tools

Google entdeckt erstmals KI-basierten Zero-Day-Exploit

Cybersicherheitsvorschriften: So erfüllen Sie Ihre Compliance-Anforderungen

Customer Identity & Access Management: Die besten CIAM-Tools

Ransomware Tracker (Entry #356): JADEPUFFER

JADEPUFFER is the name of the agentic threat actor (ATA) that exploited a vulnerability in an Internet-facing Langflow instance ( CVE-2025-3248) and, without human intervention, gained persistence, enumerated a victim's systems, and deployed ransomware across the network. It was first reported on…

CISA Incident Lessons, Amazon Q Flaw, and Giga Wiper

In Episode 378 of The 443 Security Simplified, Marc Laliberte and Corey Nachreiner examine lessons from a recent CISA security incident, a vulnerability affecting the Amazon Q Developer extension for Visual Studio Code, and Microsoft research into a destructive malware platform known as Giga Wiper…

The Spec Is Back, But Nobody Told Security

What happens when AI makes Waterfall agile? A few weeks ago, I was sitting with one of our engineering VPs while he walked me through his workflow in Cursor. Before writing a single line of code, he spent a meaningful amount of time using Cursor to craft a feature specification, a detailed natural…

Why CVE Grading Still Matters for Vulnerability Management

Vulnerability management has never been just about finding flaws. It is about understanding which flaws matter most, which ones attackers are likely to exploit, and which ones security teams need to prioritize before they become a real business risk. That is why CVEs, CVSS scores, and vulnerability…

TimbreStealer Malware Targets Mexico Companies with Advanced Evasion Techniques

WatchGuard telemetry identified a campaign associated to TimbreStealer, which is known to target companies based in Mexico. Some behaviors are similar to a previous campaign documented by Cisco Talos in 2024, which has sophisticated techniques to evade detection and difficult analysis. One more new…

NoisyS0cks: Undocumented SOCKS5 Pivot Framework Giving Ransomware Affiliates a Foothold Inside Networks

The WatchGuard Attestation Team has uncovered an undocumented pivot framework written in Golang that opens a Smux-multiplexed SOCKS5-style pivot channel on each compromised host using one of two interchangeable transports: KCP-over-UDP with DTLS obfuscation or Noise-over-TCP with TLS obfuscation…

U.S. Treasury Lifts Sanctions on Three Individuals Linked to Intellexa and Predator Spyware

The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) on Tuesday removed three individuals linked to the Intellexa Consortium, the holding company behind a commercial spyware known as Predator , from the specially designated nationals list. The names of the individuals are as follows - Merom Harpaz Andrea Nicola Constantino Hermes Gambazzi Sara Aleksandra Fayssal Hamou Hamou was sanctioned by OFAC in March 2024, and Harpaz and Gambazzi were targeted in September 2024 in connection with developing, operating, and distributing Predator. It's currently not known why they were removed from the list. Harpaz is said to be working as a manager of Intellexa S.A., while Gambazzi was identified as the owner of Thalestris Limited and Intellexa Limited. Thalestris, Treasury Department said, held the distribution rights to the spyware, and processed transactions on behalf of other entities within the Intellexa Consortium. It's also the parent company...

IBM Warns of Critical API Connect Bug Allowing Remote Authentication Bypass

IBM has disclosed details of a critical security flaw in API Connect that could allow attackers to gain remote access to the application. The vulnerability, tracked as CVE-2025-13915 , is rated 9.8 out of a maximum of 10.0 on the CVSS scoring system. It has been described as an authentication bypass flaw. "IBM API Connect could allow a remote attacker to bypass authentication mechanisms and gain unauthorized access to the application," the tech giant said in a bulletin. The shortcoming affects the following versions of IBM API Connect - 10.0.8.0 through 10.0.8.5 10.0.11.0 Customers are advised to follow the steps outlined below - Download the fix from Fix Central Extract the files: Readme.md and ibm-apiconnect-<version>-ifix.13195.tar.gz Apply the fix based on the appropriate API Connect version "Customers unable to install the interim fix should disable self-service sign-up on their Developer Portal if enabled, which will help minimise their exp...

Researchers Spot Modified Shai-Hulud Worm Testing Payload on npm Registry

Cybersecurity researchers have disclosed details of what appears to be a new strain of Shai Hulud on the npm registry with slight modifications from the previous wave observed last month. The npm package that embeds the novel Shai Hulud strain is " @vietmoney/react-big-calendar ," which was uploaded to npm back in March 2021 by a user named "hoquocdat." It was updated for the first time on December 28, 2025, to version 0.26.2. The package has been downloaded 698 times since its initial publication. The latest version has been downloaded 197 times. Aikido, which spotted the package, said it has not spotted any major spread or infections following the release of the package. "This suggests we may have caught the attackers testing their payload," security researcher Charlie Eriksen said . "The differences in the code suggests that this was obfuscated again from the original source, not modified in place. This makes it highly unlikely to be a copy-ca...

Trust Wallet Chrome Extension Hack Drains $8.5M via Shai-Hulud Supply Chain Attack

Trust Wallet on Tuesday revealed that the second iteration of the Shai-Hulud (aka Sha1-Hulud) supply chain outbreak in November 2025 was likely responsible for the hack of its Google Chrome extension, ultimately resulting in the theft of approximately $8.5 million in assets. "Our Developer GitHub secrets were exposed in the attack, which gave the attacker access to our browser extension source code and the Chrome Web Store (CWS) API key," the company said in a post-mortem published Tuesday. "The attacker obtained full CWS API access via the leaked key, allowing builds to be uploaded directly without Trust Wallet's standard release process, which requires internal approval/manual review." Subsequently, the attacker is said to have registered the domain "metrics-trustwallet[.]com" and pushed a trojanized version of the extension with a backdoor that's capable of harvesting users' wallet mnemonic phrases to the sub-domain "api.metrics-...

DarkSpectre Browser Extension Campaigns Exposed After Impacting 8.8 Million Users Worldwide

The threat actor behind two malicious browser extension campaigns, ShadyPanda and GhostPoster , has been attributed to a third attack campaign codenamed DarkSpectre that has impacted 2.2 million users of Google Chrome, Microsoft Edge, and Mozilla Firefox. The activity is assessed to be the work of a Chinese threat actor that Koi Security is tracking under the moniker DarkSpectre . In all, the campaigns have collectively affected over 8.8 million users spanning a period of more than seven years. ShadyPanda was first unmasked by the cybersecurity company earlier this month as targeting all three browser users to facilitate data theft, search query hijacking, and affiliate fraud. It has been found to affect 5.6 million users, including 1.3 newly identified victims stemming from over 100 extensions flagged as connected to the same cluster. This also includes an Edge add-on named "New Tab - Customized Dashboard" that features a logic bomb that waits for three days prior to t...

CSA Issues Alert on Critical SmarterMail Bug Allowing Remote Code Execution

The Cyber Security Agency of Singapore (CSA) has issued a bulletin warning of a maximum-severity security flaw in SmarterTools SmarterMail email software that could be exploited to achieve remote code execution. The vulnerability, tracked as CVE-2025-52691 , carries a CVSS score of 10.0. It relates to a case of arbitrary file upload that could enable code execution without requiring any authentication. "Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution," CSA said. Vulnerabilities of this kind allow the upload of dangerous file types that are automatically processed within an application's environment. This could pave the way for code execution if the uploaded file is interpreted and executed as code, as is the case with PHP files. In a hypothetical attack scenario, a bad actor could weaponize this vulnerability to place malici...

MS 365 Preiserhöhung, zum 1. July 2026, aber Exchange Postfächer aufgebohrt

Es ist seit längerer Zeit bekannt, dass Microsoft seine Preise für Abonnements zum 1. Juli 2026 anheben wird. Aber es gibt auch positive Nachrichten. Ein Blog-Leser hatte mich kürzlich per E-Mail kontaktiert, weil ihm bei MS 365 Exchange etwas Positives zum 1. July 2026 aufgefallen ist: Die Postfachgröße wurde erhöht.

Verraten und verkauft? Schwarz Digits, XM Cyber und Crowdstrike

Momentan herrscht wohl etwas "Aufruhr" in der Branche. Ein Blog-Leser hat mich darauf hingewiesen, dass die zum Lidl-Konzern gehörende Schwarz Digits und der US-Cybersicherheitsanbieter Crowdstrike ihre Partnerschaft vertiefen wollen. Dazu "verkauft" Schwarz Digits das geistige Eigentum von XM Cyber an CrowdStrike. Sprich: Man dient das Wissen einem US-Konzern an, will aber eine souveräne europäische Cloud anbieten.

Hugging Faces Opfer eines KI-Angriffs (Juli 2026)

Hugging Face, eine zentrale Open-Source-Plattform und globale Community für Künstliche Intelligenz (KI) und maschinelles Lernen musste einen Cybervorfall eingestehen. Die Plattform wurde Opfer eines erfolgreichen Angriffs einer KI, der es gelang auf interne Anmeldedaten und die Datenbank zuzugreifen.

Exchange 2016/2019 erreichen im Okt. 2026 ESU-Support-Ende

Microsoft erinnert Administratoren, die noch Microsoft Exchange 2016 oder Microsoft Exchange 2019 verwenden, dass bald Schluss mit Support ist. Die beiden genannten Software-Produkte erhalten bereits nur noch Patches im ESU-Programm. Das läuft aber im Oktober 2026 aus, so dass die Nutzer wechseln müssen.

Microsoft Outlook Meeting Insight endet, Copilot übernimmt kostenpflichtig

Kleiner Nachtrag von voriger Woche. Microsoft beendet die Funktion Meeting Insight in Microsoft Outlook. Das Ganze wird dann nur noch über eine kostenpflichtige Copilot-Funktion bereitgestellt.

Windows 11: OOB-Update KB5121767 stört SFirm und Starmoney

Das scheint wohl leicht daneben gegangen zu sein. Microsoft hat die Tage ein Out-of-Band-Update KB5121767 für Windows 11 24H2 und 25H2 zur Korrektur von Performance-Problemen bei Dell-Systemen veröffentlicht. Danach berichten aber Nutzer der Banking-Anwendung SFirm sowie von Starmoney, dass es Probleme gibt.