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Cybersecurity Headlines — April 18, 2026 Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched — Internet Tracking Mirai Variant Nexcorium: A Vulnerability-Driven IoT Botnet Campaign — Fortinet.com Researcher drops two more Microsoft Defender zero-days, all three now exploited in the wild — Help Net Security CISA flags Apache ActiveMQ flaw as actively exploited in attacks — BleepingComputer NIST Limits CVE Enrichment After 263% Surge in Vulnerability Submissions — Internet Mythos Poses Risk to SEC Market-Tracking Database, Group Says — Insurance Journal Discourse Is Not Going Closed Source — Discourse.org Apache ActiveMQ CVE-2026-34197 Added to CISA KEV Amid Active Exploitation — Internet How Zscaler and OpenAI turn zero-trust security into an AI accelerator — SiliconANGLE News Mythos poses risk to SEC market-tracking database, group says — Financial Post From the Trenches As a cybersecurity practitioner, I’m seeing an uptick in actively exploited zero-days across multiple platforms. The recent discovery of three Microsoft Defender Zero-Days that are being actively exploited is particularly concerning. Two of these vulnerabilities remain unpatched, leaving organizations vulnerable to attacks. ...

Cybersecurity Headlines — April 17, 2026 ThreatsDay Bulletin: Defender 0-Day, SonicWall Brute-Force, 17-Year-Old Excel RCE and 15 More Stories — Internet Anthropic Ready to Offer Mythos to British Banks — pymnts.com NIST Drops NVD Enrichment for Pre-March 2026 Vulnerabilities — Infosecurity Magazine Supply chain dependencies: Have you checked your blind spot? — We Live Security “Microsoft fired the skilled people, leaving flowchart followers”: Microsoft’s Security Response Center is being blamed for the zero-day BlueHammer exploit leak, but I can’t tell who’s right — Windows Central Anthropic’s Nuclear Bomb — War on the Rocks Anthropic’s Nuclear Bomb — War on the Rocks Singapore urges firms to strengthen cybersecurity amid AI risks after Anthropic’s Mythos preview — CNA Sullivan & Cromwell Discusses Proposed FSOC Changes to Nonbank SIFI Designation Guidance — Columbia.edu NIST shifts National Vulnerability Database to risk-based triage as CVE submissions hit record levels — SiliconANGLE News From the Trenches As a cybersecurity practitioner, I’ve been keeping an eye on the latest developments that could impact my clients’ security posture. One of the most concerning stories is the SonicWall brute-force attack, which highlights the importance of robust password management and multi-factor authentication. ...

Cybersecurity Headlines — April 16, 2026 U.S. CISA adds Microsoft SharePoint Server, and Microsoft Office Excel flaws to its Known Exploited Vulnerabilities catalog — Securityaffairs.com Anthropic’s Mythos AI found thousands of zero-day exploits and the banking system’s emergency response revealed how unprepared everyone is — Techpinions.com Tenable unveils OT discovery engine to expose cyber-physical risks — Help Net Security Picus Security Earns Top Ranking in Spring 2026 G2 Grid Report for Breach and Attack Simulation — GlobeNewswire Open Channels FM: The Imperative of Layered Security in Modern Web Hosting — Openchannels.fm Tenable Expands Exposure Management with Instant OT Discovery to Secure Cyber-Physical Systems — Tenable.com Presentation: Empower Your Developers: How Open Source Dependencies Risk Management Can Unlock Innovation — InfoQ.com Presentation: Empower Your Developers: How Open Source Dependencies Risk Management Can Unlock Innovation — InfoQ.com Axonius targets remediation gap with AI, cyber-physical assets and data trust layer — SiliconANGLE News A retired general’s warning: America can’t fight the AI arms race on tech it doesn’t control — Fortune From the Trenches As a cybersecurity practitioner, I’m always on the lookout for vulnerabilities that can be exploited by attackers. The recent additions to CISA’s Known Exploited Vulnerabilities catalog are a prime example of this - Microsoft SharePoint Server and Microsoft Office Excel flaws have been added, highlighting the need for organizations to patch these systems ASAP. ...

Cybersecurity Headlines — April 15, 2026 Quantum computers could usher in a crisis worse than Y2K — New Scientist Zepto vs rivals; Cybersecurity goes outsourced — The Times of India WELL Subsidiary CYBERWELL Launches CYDEcore Fusion Platform and Provides Strategic Business Update to Address Escalating Cybersecurity Threats — Financial Post Attackers target unpatched ShowDoc servers via CVE-2025-0520 — Securityaffairs.com Attackers target unpatched ShowDoc servers via CVE-2025-0520 — Securityaffairs.com What 2025 taught us about the importance of resilience in retail — TechRadar The Map Is Not the Territory: What Cyber Threat Maps Really Show — Cloudtweaks.com Cyber Risk Ratings Fade Out; Actionable Intelligence Takes The Spotlight — Forrester.com CISA Adds 6 Known Exploited Flaws in Fortinet, Microsoft, and Adobe Software — Internet Cybersecurity jobs available right now: April 14, 2026 — Help Net Security From the Trenches As a cybersecurity practitioner, I’m constantly on the lookout for emerging threats that can compromise our systems and data. Two stories from today’s headlines caught my attention because they highlight the growing urgency of addressing unpatched vulnerabilities in our software. ...

Cybersecurity Headlines — April 14, 2026 Cybersecurity Market Surges to $351.92 billion by 2030 | CAGR 9.1% — GlobeNewswire Are AI Agents Your Next Security Nightmare? — Kdnuggets.com Does ‘federated unlearning’ in AI improve data privacy, or create a new cybersecurity risk? — The Conversation Africa ⚡ Weekly Recap: Fiber Optic Spying, Windows Rootkit, AI Vulnerability Hunting and More — Internet Building Cybersecurity Skills: A Complete Guide for Modern Developer — C-sharpcorner.com Claude Mythos and Project Glasswing: why an AI superhacker has the tech world on alert — The Conversation Africa OpenAI Revokes macOS App Certificate After Malicious Axios Supply Chain Incident — Internet How does Anthropic Mythos increase cyber risk? #tech — Alltoc.com Security Affairs newsletter Round 572 by Pierluigi Paganini – INTERNATIONAL EDITION — Securityaffairs.com From the Trenches As a cybersecurity practitioner, I’m always on the lookout for potential threats and emerging trends that can impact my work. Two stories from today’s headlines caught my attention - “Are AI Agents Your Next Security Nightmare?” and “Does ‘federated unlearning’ in AI improve data privacy, or create a new cybersecurity risk?” ...

Cybersecurity Headlines — April 13, 2026 How does Anthropic Mythos increase cyber risk? #tech — Alltoc.com Security Affairs newsletter Round 572 by Pierluigi Paganini – INTERNATIONAL EDITION — Securityaffairs.com Week in review: Windows zero-day exploit leaked, Patch Tuesday forecast — Help Net Security Can Anthropic Mythos AI detect hidden financial cyber threats before attacks, and how Wall Street banks test next-gen cybersecurity defense systems today — The Times of India Project Glasswing: AI That Can Hack and Save Coding Hacks — C-sharpcorner.com Android Flaw Leaves 30 Million Crypto Wallets Open To Attack: Microsoft Analysts — Bitcoinist Adobe Reader Zero-Day Exploit Uses Fake PDF Files To Steal User Data — Ubergizmo Show HN: Cyber Pulse. AI pipeline for triage and alerting on cyber news/intel — Google News How AI is getting better at finding security holes — NPR How did Anthropic’s Mythos raise cybersecurity concerns? #world — Alltoc.com From the Trenches As a cybersecurity practitioner, I’m constantly on the lookout for emerging threats that can compromise our systems and data. Two stories from today’s headlines caught my attention because they highlight the growing risks of cyber attacks and the importance of proactive defense measures. ...

Cybersecurity Headlines — April 12, 2026 Android Flaw Leaves 30 Million Crypto Wallets Open To Attack: Microsoft Analysts — Bitcoinist Adobe Reader Zero-Day Exploit Uses Fake PDF Files To Steal User Data — Ubergizmo Show HN: Cyber Pulse. AI pipeline for triage and alerting on cyber news/intel — Google News How AI is getting better at finding security holes — NPR How did Anthropic’s Mythos raise cybersecurity concerns? #world — Alltoc.com OpenAI MYTHOS, Gemini Agents & Anthropic’s New Strategy Explained — Geeky Gadgets Mythos AI alarm bells: Fair warning or marketing hype? — The Times of India Defend Network – Free AI-powered daily threat briefings for cybersecurity teams — Betalist.com Project Glasswing: The Ten Consequences Nobody’s Writing About Yet — Forrester.com Project Glasswing: The Ten Consequences Nobody’s Writing About Yet — Forrester.com From the Trenches As a cybersecurity practitioner, I’m always on the lookout for potential threats that can compromise user data and security. Two recent stories caught my attention because they highlight the importance of staying vigilant against emerging threats. ...

Cybersecurity Headlines — April 11, 2026 The Day the Locks Broke: Claude Mythos, Project Glasswing, and the Coming AI Cyber Storm — Spacewar.com Iran’s Other Front: The War Over the Internet — War on the Rocks FBI report: Iranian hackers targeting U.S. critical infrastructure — Naturalnews.com What to Know About CyberAv3ngers: The IRGC-Linked Group Targeting Critical Infrastructure — Tenable.com ZEVENET: How to Choose a Cybersecurity Provider in 2026: Why Most Can’t Be Trusted — Skudonet.com Mallory Launches AI-Native Threat Intelligence Platform, Turning Global Threat Data Into Prioritized Action — Next Big Future Mallory brings contextual threat intelligence to security operations — Help Net Security Mallory Launches AI-Native Threat Intelligence Platform, Turning Global Threat Data Into Prioritized Action — HackRead ThreatsDay Bulletin: Hybrid P2P Botnet, 13-Year-Old Apache RCE and 18 More Stories — Internet Aligning cybersecurity with ESG goals: A guide for IT leaders — Techtarget.com From the Trenches As I dive into today’s cybersecurity news, two stories stand out for their potential impact on our industry. The first is “The Day the Locks Broke: Claude Mythos, Project Glasswing, and the Coming AI Cyber Storm” from Spacewar.com. This article highlights the growing threat of AI-powered cyber attacks, which are becoming increasingly sophisticated and difficult to defend against. As a practitioner, I’ve seen firsthand how these types of attacks can catch even the most experienced security teams off guard. ...

Cybersecurity Headlines — April 10, 2026 Mallory Launches AI-Native Threat Intelligence Platform, Turning Global Threat Data Into Prioritized Action — Next Big Future Mallory brings contextual threat intelligence to security operations — Help Net Security Mallory Launches AI-Native Threat Intelligence Platform, Turning Global Threat Data Into Prioritized Action — HackRead ThreatsDay Bulletin: Hybrid P2P Botnet, 13-Year-Old Apache RCE and 18 More Stories — Internet Aligning cybersecurity with ESG goals: A guide for IT leaders — Techtarget.com From the field to the report and back again: How incident responders can use the Year in Review — Talosintelligence.com Iranian cyber warfare escalates: U.S. critical infrastructure under attack as IRGC hackers exploit weak industrial defenses — Naturalnews.com U.S. Public Sector Under Siege: Threat Intelligence for Q1 2026 — Trendmicro.com Anthropic’s Glasswing initiative raises questions for US cyber operations — Nextgov Banning New Foreign Routers Mistargets Products to Fix Real Problem — EFF From the Trenches As a cybersecurity practitioner, I’m always on the lookout for innovative solutions that can help me stay ahead of emerging threats. Two recent announcements caught my attention and warrant some discussion. ...

Cybersecurity Headlines — April 09, 2026 Anthropic’s Glasswing initiative raises questions for US cyber operations — Nextgov Banning New Foreign Routers Mistargets Products to Fix Real Problem — EFF CISA orders feds to patch exploited Ivanti EPMM flaw by Sunday — BleepingComputer Why Anthropic’s new AI model has some cybersecurity pros worried about its hacking abilities — Business Insider Prioritizing security, privacy, and trust in the AI era | FY25 Purpose Report — Cisco.com GreenboneOS: Patch Now! CVE-2026-35616 and CVE-2026-21643: Fortinet EMS Actively Exploited — Greenbone.net Bugcrowd and Carahsoft Partner to Bring FedRAMP-Authorized Proactive Security and Testing Solutions to the Public Sector — GlobeNewswire Anthropic Launches Project Glasswing to Use AI to Find and Fix Critical Software Vulnerabilities — Infosecurity Magazine Always-on AI Agents put everything hackers could ever want behind a single attack surface — TechRadar Anthropic’s Claude Mythos AI has discovered thousands of vulnerabilities in every OS and browser — TweakTown From the Trenches As a cybersecurity practitioner, I’m seeing some red flags that warrant attention from our industry. One of the most concerning stories is Anthropic’s Glasswing initiative raising questions for US cyber operations (Nextgov). This initiative aims to use AI to find and fix critical software vulnerabilities, but it also raises concerns about the potential for unintended consequences or misuse by malicious actors. ...