Cyber Security
Self-Healing WordPress Backdoor Defies Standard Removal
Cisco Patches Actively Exploited Catalyst SD-WAN Flaw
MetaMask Discloses Incident, Exits Ethereum Validators
TeamViewer Patches Critical Access-Control Bypass Flaw
WatchGuard Patches Critical Root Code Execution Flaw
CISA Warns of Critical Pre-Auth Flaw in MikroTik Routers
FTC Confirms Probe Into OpenAI, Anthropic AI Agents
Teen Researcher’s AI Tool Gains Admin on Microsoft Titan
OpenSSL Patches High-Severity DTLS Memory Leak Flaw
CSuite Phishing Campaign Hijacks Microsoft 365 Sessions
Chrome, Firefox Patch Over 100 Flaws in Joint Update
Pentagon Records Agency Breach Exposes Data on 3 Million
France Tax Agency Breached Seven Weeks via Stolen Passwords
Citrix NetScaler Zero-Days Deployed WHIPSHOT, SLAPSHOT
FBI Tells ShinyHunters Members to Turn Themselves In
Russia’s Star Blizzard Targets 100+ Orgs With Fake Invites
New Spectre-v2 BTR Attack Leaks Linux Root Password Hashes
Autonomous AI Agent Breaches Cybersecurity Nonprofit DIVD
OpenAI Discloses Self-Replicating Worm-Style Prompt Injection
Fake ChatGPT Custom GPTs Push ClickFix Attacks to Drop RAT
101 Malicious npm Packages Add Developers to WhatsApp Groups
Glow Security Finds 13,000 Exposed AI Agent Screenshots
Kiteworks Patches Critical Flaw Found During Precautionary Shutdown
Ex-Air Force Members Sentenced to 189 Months for BEC Scams
Vietnamese National Charged in $16 Million Crypto Scam
Apple Patches CoreGraphics Zero-Day Used in Targeted Attacks
MCP Python SDK Flaw Exposes OAuth Credentials to Malicious Servers
OpenAI Shelves GPT-6.1 Astra After Safety Failures and Rogue Actions
Ransomware Attack Disrupts Keio Corporation Business Systems
Times Car Breach Exposes 6.6 Million Japanese Car-Sharing Accounts
Cybersecurity
Skoda Online Shop Breach Exposes Customer Data and Password Hashes
Skoda Auto disclosed a breach of its online shop portal that exposed customer names, addresses, email addresses, and password hashes to unauthorized access.
Cybersecurity
Operation HookedWing: 4-Year Campaign Compromises 500 Orgs
SOCRadar uncovered Operation HookedWing, a 4-year credential-harvesting campaign that compromised 2,000+ accounts across 500+ organizations in aviation, energy, government, and critical infrastructure using GitHub-hosted phishing ...
Application Security
cPanel Patches Three CVEs as Sorry Ransomware Hits 44K Servers
cPanel released a second emergency patch in ten days — CVE-2026-29202 and CVE-2026-29203 enable code execution — as Sorry ransomware hits 44,000 servers.
Application Security
Checkmarx Jenkins Plugin Backdoored in TeamPCP Supply Chain
TeamPCP backdoored the Checkmarx Jenkins AST scanner plugin in a third supply chain wave, following March Trivy and April KICS attacks. Version 2026.5.09 was compromised; ...
Cybersecurity
University Student’s TETRA Replay Attack Halts Taiwan Bullet Train
A Taiwan university student used cheap radio equipment to replay TETRA signals, disabling the island's high-speed rail network for nearly an hour in 2026.
Application Security
Five Malicious NuGet Packages Target Chinese .NET Developers
Socket discovered five NuGet packages typosquatting Chinese .NET UI libraries — IR.DantUI, IR.OscarUI, and three more — amassing 65,000 downloads while stealing credentials from 12 ...
Cybersecurity
QLNX Fileless Linux RAT Combines eBPF Rootkit, PAM Backdoor
QLNX is a fileless Linux RAT using eBPF rootkit and PAM backdoor to steal npm, PyPI, AWS, and GitHub tokens from developer hosts with near-zero ...
Cybersecurity
ShinyHunters Leaks 50GB After Vishing Breach at Cushman & Wakefield
Cushman & Wakefield confirmed a vishing-enabled breach after ShinyHunters and Qilin ransomware listed the firm separately. ShinyHunters published a 50GB Salesforce dataset after the May ...
Application Security
Google GTIG Documents First AI-Generated Zero-Day Exploit
Google's Threat Intelligence Group confirmed the first AI-generated zero-day exploit, targeting 2FA logic in an open-source web admin tool via LLM-written code.
Application Security
Apache CVE-2026-23918: HTTP/2 Double-Free Enables RCE on Debian
Apache patched CVE-2026-23918 (CVSS 8.8), a double-free in mod_http2 that enables RCE on Debian-default Linux servers. Fix ships in Apache HTTP Server 2.4.67.
Application Security
SailPoint GitHub Repositories Breached via Third-Party App Flaw
SailPoint disclosed unauthorized access to its GitHub repositories through a third-party app vulnerability on April 20, 2026, exposing source code data.
Cybersecurity
TrickMo Android Banker Routes C2 Traffic Through TON Blockchain
ThreatFabric identified Trickmo.C, a TrickMo Android banking trojan routing C2 through TON blockchain with SSH tunneling, SOCKS5, and NFC capabilities targeting European banking users.
Application Security
CVE-2026-7482 in Ollama Exposes 300,000 AI Servers to Memory Leaks
CVE-2026-7482, dubbed 'Bleeding Llama,' exposes 300,000+ Ollama AI servers to heap memory leaks via a crafted GGUF file. Patch to version 0.17.1 is available.
Application Security
JDownloader Website Hacked to Serve Python RAT Malware
Unknown attackers compromised the official JDownloader website and replaced legitimate Windows and Linux installers with a Python-based remote access trojan.
Cybersecurity
NVIDIA GeForce NOW Breach Exposes Armenian Users’ Data
NVIDIA confirmed a GeForce NOW data breach via Armenian partner GFN.am, exposing names, emails, and phone numbers of users registered before March 9, 2026.
Cybersecurity
RansomHouse Breaches Trellix; Source Code Repositories Accessed
Trellix confirmed unauthorized access to its source code repositories after RansomHouse posted photographic evidence of the breach. Law enforcement has been notified.
Application Security
Fake OpenAI Repo Trended on Hugging Face Before Malware Found
A fraudulent OpenAI repository reached Hugging Face's trending list while distributing infostealing malware targeting credentials and access tokens.
Cybersecurity
MacSync Infostealer Weaponizes Google Ads and Claude.ai Chats
Attackers chain Google sponsored ads with fake Claude.ai chat sessions to deliver MacSync, a macOS infostealer harvesting Keychain contents and browser credentials.
Cybersecurity
Germany, Spain Dismantle Rebooted Crimenetwork, Arrest Operator
German and Spanish authorities shut down the relaunched Crimenetwork dark web marketplace and arrested its 35-year-old German operator in Mallorca under a European arrest warrant.
Cybersecurity
TCLBanker Trojan Spreads via WhatsApp and Outlook, Hits 59 Banks
Researchers identify TCLBanker, a Brazilian banking trojan targeting 59 financial platforms that self-propagates by sending malicious messages through victims' WhatsApp and Outlook accounts.
CVE Vulnerability Alerts
Critical FortiMail Zero-Day Exploited With No Patch Yet
Cybersecurity
Pentagon Records Agency Breach Exposes Data on 3 Million
Cybersecurity
Police Dismantle KillSec Ransomware Gang, Nab Teen Leader
Cybersecurity
Ransomware Attack Disrupts Keio Corporation Business Systems

TOP CYBERSECURITY HEADLINES

This Week’s Security Spotlight

Cybersecurity
FTC Confirms Probe Into OpenAI, Anthropic AI Agents
Cybersecurity
CSuite Phishing Campaign Hijacks Microsoft 365 Sessions
Cybersecurity
Pentagon Records Agency Breach Exposes Data on 3 Million
Cybersecurity
OpenAI Shelves GPT-6.1 Astra After Safety Failures and Rogue Actions
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Checkmarx Jenkins Plugin Backdoored in TeamPCP Supply Chain
TeamPCP backdoored the Checkmarx Jenkins AST scanner plugin in a third supply chain wave, following March Trivy and April KICS attacks. Version 2026.5.09 was compromised; ...
University Student’s TETRA Replay Attack Halts Taiwan Bullet Train
A Taiwan university student used cheap radio equipment to replay TETRA signals, disabling the island's high-speed rail network for nearly an hour in 2026.
Five Malicious NuGet Packages Target Chinese .NET Developers
Socket discovered five NuGet packages typosquatting Chinese .NET UI libraries — IR.DantUI, IR.OscarUI, and three more — amassing 65,000 downloads while stealing credentials from 12 ...
QLNX Fileless Linux RAT Combines eBPF Rootkit, PAM Backdoor
QLNX is a fileless Linux RAT using eBPF rootkit and PAM backdoor to steal npm, PyPI, AWS, and GitHub tokens from developer hosts with near-zero ...
ShinyHunters Leaks 50GB After Vishing Breach at Cushman & Wakefield
Cushman & Wakefield confirmed a vishing-enabled breach after ShinyHunters and Qilin ransomware listed the firm separately. ShinyHunters published a 50GB Salesforce dataset after the May ...
Google GTIG Documents First AI-Generated Zero-Day Exploit
Google's Threat Intelligence Group confirmed the first AI-generated zero-day exploit, targeting 2FA logic in an open-source web admin tool via LLM-written code.
Apache CVE-2026-23918: HTTP/2 Double-Free Enables RCE on Debian
Apache patched CVE-2026-23918 (CVSS 8.8), a double-free in mod_http2 that enables RCE on Debian-default Linux servers. Fix ships in Apache HTTP Server 2.4.67.
SailPoint GitHub Repositories Breached via Third-Party App Flaw
SailPoint disclosed unauthorized access to its GitHub repositories through a third-party app vulnerability on April 20, 2026, exposing source code data.
TrickMo Android Banker Routes C2 Traffic Through TON Blockchain
ThreatFabric identified Trickmo.C, a TrickMo Android banking trojan routing C2 through TON blockchain with SSH tunneling, SOCKS5, and NFC capabilities targeting European banking users.
CVE-2026-7482 in Ollama Exposes 300,000 AI Servers to Memory Leaks
CVE-2026-7482, dubbed 'Bleeding Llama,' exposes 300,000+ Ollama AI servers to heap memory leaks via a crafted GGUF file. Patch to version 0.17.1 is available.
JDownloader Website Hacked to Serve Python RAT Malware
Unknown attackers compromised the official JDownloader website and replaced legitimate Windows and Linux installers with a Python-based remote access trojan.
NVIDIA GeForce NOW Breach Exposes Armenian Users’ Data
NVIDIA confirmed a GeForce NOW data breach via Armenian partner GFN.am, exposing names, emails, and phone numbers of users registered before March 9, 2026.
RansomHouse Breaches Trellix; Source Code Repositories Accessed
Trellix confirmed unauthorized access to its source code repositories after RansomHouse posted photographic evidence of the breach. Law enforcement has been notified.
Fake OpenAI Repo Trended on Hugging Face Before Malware Found
A fraudulent OpenAI repository reached Hugging Face's trending list while distributing infostealing malware targeting credentials and access tokens.
MacSync Infostealer Weaponizes Google Ads and Claude.ai Chats
Attackers chain Google sponsored ads with fake Claude.ai chat sessions to deliver MacSync, a macOS infostealer harvesting Keychain contents and browser credentials.
Germany, Spain Dismantle Rebooted Crimenetwork, Arrest Operator
German and Spanish authorities shut down the relaunched Crimenetwork dark web marketplace and arrested its 35-year-old German operator in Mallorca under a European arrest warrant.
TCLBanker Trojan Spreads via WhatsApp and Outlook, Hits 59 Banks
Researchers identify TCLBanker, a Brazilian banking trojan targeting 59 financial platforms that self-propagates by sending malicious messages through victims' WhatsApp and Outlook accounts.
cPanel and WHM Patch Three CVEs, Two Rated High Severity
cPanel patched two CVSS 8.8 flaws including Perl code execution in WHM, as the 40,000-server CVE-2026-41940 campaign remains active.
Twelve Critical vm2 Vulnerabilities Allow Node.js Sandbox Escape
Researchers disclosed 12 critical vulnerabilities in the widely-used vm2 Node.js sandbox library, all enabling sandbox escape and arbitrary code execution on the host system.
Fake Claude AI Site Delivers New Beagle Windows Backdoor
A malicious website impersonating Claude AI distributes a new, previously undocumented Windows backdoor named Beagle to users seeking to download the AI assistant application.