threat-intel Content Delivery Exploit Opens Websites to Brand Hijacking This article details a new exploit, dubbed "Underminr," that leverages vulnerabilities in Internet infrastructure to allow attackers to hijack websites and conceal malicious activity. The technique, a successor to domain… Dark Reading · May 21, 2026 High USEUCNcdndnsdomain fronting
threat-intel ThreatsDay Bulletin: Linux Rootkits, Router 0-Day, AI Intrusions, Scam Kits and 25 New Stories This week's threat intelligence report highlights a diverse range of security incidents and vulnerabilities, including a significant Pwn2Own competition with substantial rewards, warnings about the risks of deploying age… The Hacker News · May 21, 2026 High CVE-2026-45793CVE-2026-8631UKUSCHzero-dayai securitysocial engineering
threat-intel When Identity is the Attack Path This article highlights the increasing risk of attacks leveraging compromised identity credentials within complex IT environments. A single, exposed access key, often due to cached credentials or excessive permissions, c… The Hacker News · May 21, 2026 High USidentitycredentialspermissions
supply-chain Supply Chain Security Crisis: Too Many Vulnerabilities, Too Little Visibility This article highlights a growing cybersecurity crisis driven by the rapid proliferation of vulnerabilities and the decreasing time it takes for attackers to exploit them. The analysis, primarily based on a Black Kite re… SecurityWeek · May 21, 2026 High USsupply chainvulnerabilityai
vulnerability Microsoft warns of new Defender zero-days exploited in attacks Microsoft has released security patches for two zero-day vulnerabilities, CVE-2026-41091 (RedSun) and CVE-2026-45498 (UnDefend), that are being actively exploited in attacks. These flaws, affecting Microsoft Defender and… BleepingComputer · May 21, 2026 High CVE-2026-41091CVE-2026-45498USzero-dayprivilege escalationdefender
supply-chain GitHub links repo breach to TanStack npm supply-chain attack A supply-chain attack targeting GitHub originated with a malicious version of the Nx Console VS Code extension, facilitated by the TeamPCP threat group. The attack compromised over 3,800 internal repositories and extende… BleepingComputer · May 21, 2026 High USsupply-chainnpmvscode
threat-intel Hackers bypass SonicWall VPN MFA due to incomplete patching Hackers exploited a vulnerability (CVE-2024-12802) in SonicWall Gen6 SSL-VPN appliances to bypass multi-factor authentication and deploy ransomware tools. The attackers gained access to networks within 30-60 minutes, lev… BleepingComputer · May 20, 2026 High CVE-2024-12802USvpnmfacredential theft
data-breach Processes and Culture Top Reasons Behind Data Breaches This article examines the reasons behind persistent data breaches, particularly focusing on the issue of underreporting within organizations. The analysis, stemming from a Massachusetts state study, highlights weaknesses… Dark Reading · May 20, 2026 High USdata breachcyber hygienepassword security
threat-intel AI-Powered App Attacks Are Faster, More Frequent and Harder to Stop This SecurityWeek article highlights a significant shift in app security driven by the rapid adoption of AI by cybercriminals. The report from Digital.ai indicates a dramatic increase in attacks against apps, moving from… SecurityWeek · May 20, 2026 High USGBaiagentic aiapp security
threat-intel Microsoft Takes Down Malware-Signing Service Behind Ransomware Attacks Microsoft disrupted a malware-signing-as-a-service (MSaaS) operation, dubbed OpFauxSign, led by the threat actor Fox Tempest, which was using its Artifact Signing system to distribute malware and ransomware. The operatio… The Hacker News · May 20, 2026 High USFRINmsaascode-signingmalware
threat-intel Identity Alone Isn't Enough: Why Device Security Has to Share the Load This article highlights the limitations of relying solely on identity verification in modern cybersecurity, arguing that it’s no longer sufficient against sophisticated attacks leveraging AI and phishing. The piece empha… BleepingComputer · May 20, 2026 High USzero trustmfadevice posture
threat-intel Texas, Florida top list of states reporting millions of dollars lost through crypto ATMs A recent FBI report reveals a significant surge in financial losses linked to cryptocurrency ATMs across the United States, totaling $388 million in 2025. Texas and Florida topped the list of states experiencing these lo… The Record · May 20, 2026 High CHNEAUcryptocurrencyscamsfraud
threat-intel Agent AI is Coming. Are You Ready? Orchid Security’s 2026 Identity Gap Snapshot reveals a significant increase in ‘identity dark matter,’ primarily due to enterprises rapidly adopting Agent AI. This trend highlights vulnerabilities stemming from AI agents… The Hacker News · May 20, 2026 Medium USGBaiagent aiidentity management
threat-intel GitHub Breached — Employee Device Hack Led to Exfiltration of 3,800+ Internal Repos GitHub experienced a breach originating from an employee device compromised by a poisoned Microsoft Visual Studio Code extension. The attacker exfiltrated over 3,800 internal repositories, facilitated by the threat actor… The Hacker News · May 20, 2026 High USILIRsupply chaincredential theftinfostealer
supply-chain Typosquatting Is No Longer a User Problem. It's a Supply Chain Problem This article highlights a significant shift in cyberattack tactics, moving away from traditional phishing and towards a supply chain attack leveraging AI-generated lookalike domains and compromised third-party scripts. T… The Hacker News · May 20, 2026 Critical USsupply-chainbrowserai
threat-intel Real-World ICS Security Tales From the Trenches This article details real-world incidents involving industrial control systems (ICS) security vulnerabilities, highlighting the challenges of securing OT environments beyond traditional IT security practices. Two separat… SecurityWeek · May 20, 2026 High IRUSicsotlateral movement
malware Tracking TamperedChef Clusters via Certificate and Code Reuse This report details ongoing activity clusters closely resembling the TamperedChef (EvilAI) malware campaign, which involves trojanized productivity software like PDF editors and calendars. These campaigns utilize malicio… Palo Alto Unit 42 · May 20, 2026 High USpersistencecommand and controltrojan
ransomware FBI warns students and staff that ShinyHunters may come knocking after Canvas breach The FBI issued an advisory regarding the ShinyHunters extortion gang following a breach of an online Learning Management System used by educational institutions. Instructure, the provider of Canvas, quietly agreed to pay… Graham Cluley · May 20, 2026 High USransomwarelmseducation
vulnerability Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit This report details a zero-day vulnerability, dubbed ‘YellowKey,’ affecting Windows 11 and Server 2025, allowing attackers to bypass BitLocker Device Encryption through a USB drive exploit. Microsoft has released a mitig… The Hacker News · May 20, 2026 High CVE-2026-45585USbitlockerwinrezero-day
threat-intel Interpol's 'Operation Ramz' Pioneers Cross-Region Collabs in Middle East Interpol’s ‘Operation Ramz’ was a five-month collaborative law enforcement effort involving 13 countries in the Middle East and North Africa (MENA) region to combat cybercrime. The operation resulted in the identificatio… Dark Reading · May 20, 2026 High AEEGIQcybercrimeregionalcollaboration
