Security News. From Our Analysts.
Security news from the Brandefense team: new malware, vulnerabilities, data breaches and threat actor activity, summarized for security professionals.
Security News Adobe Acrobat Sign Abused in Redline Stealer Distribution Campaigns How threat actors abuse Adobe Acrobat Sign signing requests to deliver Redline Stealer, how the lure reaches users, and what to do to stay safe. 
Security News A New Malware Campaign Detected through Microsoft OneNote Files OneNote malware campaigns hide malicious files under fake buttons in .one attachments. See how they work, what Microsoft now blocks and how to defend. 
Security News Critical RCE Alarm in Siemens Solid Edge Viewer Software Siemens fixed CVE-2023-22669, a heap-based buffer overflow in Solid Edge Viewer DWG parsing that can let an attacker run code. What to update. 
Security News CISA Adds ZK Framework RCE Flaw to Catalog of Known Exploited Vulnerabilities The U.S. Cybersecurity & Infrastructure Security Agency (CISA) has recently issued a warning about an RCE flaw that is being exploited by cybercriminals. 
Security News Multiple 2FA Apps Distributing Malware Discovered in App Store and Google Play Fake 2FA apps were found on the App Store and Google Play, pushing costly yearly subscriptions. Learn what happened and how to pick a safe app. 
Security News Critical Vulnerability Alert in ClamAV A critical remote code execution vulnerability has been discovered in ClamAV, an open-source anti-virus software by Cisco. 
Security News Reddit Suffered a Security Breach Resulting in Unauthorized Access to Internal Systems Reddit suffered a security breach resulting in unauthorized access to its internal systems, sensitive documents, and system source code by threat actors. 
Security News Adobe Acrobat Reader DC RCE Vulnerability: Exploit Code Released Recently patched critical RCE vulnerability in the Adobe Acrobat Reader DC software has been identified with the publication of PoC exploitation code. 
Security News Code Signing Certificates for GitHub Desktop and Atom Apps Suffered Unauthorized Access GitHub discovered that a series of repositories used in the planning and development of GitHub Desktop and Atom were accessed by unknown threat actors. 
Security News RCE Alert in IBM WebSphere Application Server A critical security vulnerability has been identified in IBM WebSphere Application Server that can cause remote code execution by threat actors. 
Security News Multiple Vulnerabilities in ChromeOS Google fixed four ChromeOS flaws, CVE-2023-0471 to CVE-2023-0474, in WebTransport, WebRTC, ServiceWorker and GuestView. Why to apply the update now. 
Security News A Critical Vulnerability Affecting QNAP NAS Devices Has Been Detected QNAP fixed a critical flaw, CVE-2022-27596, that lets remote attackers inject code into NAS devices on QTS 5.0.1 and QuTS hero h5.0.1. Update now. All 20 pages
About The Blog.
Last updated June 9, 2026-
Articles on ransomware, APT groups, the dark web, digital risk protection, fraud, sector analysis and VIP security, written for security teams.
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New articles are added several times a month. The newest come first, and every article shows its publish date.
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Use the topic chips above the list to open one topic, or type a word in the search box. Each topic has its own page.
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Articles draw on public sources such as CISA advisories, MITRE ATT&CK and ENISA reports. Sources are listed at the end of an article when it cites them.
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The site feed at brandefense.io/feed/ lists new posts. The email sign-up box is on the All Resources and Reports pages.
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Brandefense is an AI-driven threat intelligence company. Its platform covers cyber threat intelligence, digital risk protection and external attack surface management. You can request a demo on your own domain from the Request A Demo page.
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The count at the top of the blog page shows the current total, and each topic chip shows how many articles that topic holds. You can open all of them or pick one topic, such as APT Groups, Dark Web, Ransomware or Fraud. Each article shows its publish date.
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The blog describes its articles as explained by the analysts who track threats. They cover threat actors, dark web activity, ransomware and digital risk. The newest articles appear first.
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Yes. APT Groups is one of the topic chips above the list, and it opens only the articles on that topic. The Knowledge Hub also holds profiles of threat groups.
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The surface web is the part of the internet that search engines list. The deep web is content that search engines do not list, such as pages behind a login. The dark web needs special software to reach. The blog has an article that explains the three layers in plain words.