Lazarus exploits a fresh Windows flaw, AI agents autonomously hit Taiwan agencies, and more in today's security brief.

Sources:

• Microsoft issues emergency patch as North Korean hackers caught exploiting dangerous flaw
• Open-Source AI Agents Breach Taiwan Nuclear Agency in Four-Day Autonomous Strike
• Bloom Security’s Extension Resurrection research exposes a blind spot in developer security
• 'Jewelbug' APT Balances State Espionage & Cryptocurrency Theft
• PSA: Don't trust that Chrome update popup — it could be malware

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Hudson Rock maps the largest AI supply chain breach to date: LiteLLM compromise hits AWS, Samsung, Cisco and thousands more.

Sources:

• Largest AI Supply Chain Breach of 2026: LiteLLM Hack Impacts Thousands of Global Enterprises - Claim Your Ethical Disclosure | InfoStealers
• Android malware combo takes out loans and relays victims' credit cards
• Lazarus Group Hacked Defense Workers With Windows Kernel Zero-Day for Five Weeks
• Signal adds new security feature to thwart man-in-the-middle attacks
• This Coin-Sized Device Can Hack a Boeing 737 | WIRED

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Docker patched a container-to-host escape; Zoom fixed a zero-click RCE affecting all platforms. Also: Polish power plant breach, DeadLock's blockchain C2.

Sources:

• CopyEscape: Taking Over Docker Hosts with docker cp | Imperva
• Ⓐ Cyber Security | Blog | ZOOMSDAY
• Hackers Breach Polish Power Plant Controls via Private Cellular Network and Shut Turbine
• DeadLock Ransomware Hides C2 on Polygon Blockchain, 80-Plus Victims Hit
• Poland's Water Hack Prosecution Names Russians But Can't Reach Them: Default Passwords Opened Plants
• Inside the BBC’s emergency plans for a Putin cyber attack
• New Zealand Targets Russian Cyber Actors With Fresh Sanctions
• BTCPay offers $190,000 bounty after bitcoin payment servers drained in exploit

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OpenAI's new offensive-security model finds real Chrome zero-days, while Daybreak tiers open for defenders and researchers.

Sources:

• OpenAI launches GPT-5.6-Cyber to help defenders find vulnerabilities before attackers do

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Hidden backdoor in 20+ Zbtlink router models allows root access to an estimated 100,000 devices worldwide.

Sources:

• Chinese Router Backdoor Opens Root Access on 100,000 Devices Worldwide – SOFX
• Trustfall: An RSA Heap Underwrite Into OP-TEE's Secure World · ByteRay Blog
• tl;dv (Too Lazy; Didn't Validate): 181,874 Meetings Left Wide Open | bobdahacker
• The npm attack that turned provenance attestations into camouflage
• Hackers Use BNB Chain to Spread Malware Through Fake CAPTCHAs
• 8 out of 10 Banks in Belgium HATE This One Weird eID RCE - Am I Being Pwned?
• RovoBlast: How One Click Triggered Atlassian’s AI Assistant to Leak Data
• Hackers breach TrueConf to trojanize client installers with backdoors
• Another Bitcoin infrastructure exploit hits, this time draining Lightning payment servers
• Researchers wiretapped a whole neighborhood's fiber internet from home
• MIT researchers found a new Spectre attack that can slip past Intel and AMD defenses
• Experts warn this fake Claude install guide can be used to empty crypto wallets
• Self-destructing phone code sparks federal case
• Bypassing Windows application whitelisting | dotSec

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Anthropic says RCE via .mcp.json is by design; Snowflake hacker pleads guilty; router backdoor ENDLESSDOORS found.

Sources:

• Claude Code RCE: How a Malicious PR Triggers Code Execution
• CaptiveCrunch: Midnight Blizzard targets travelers worldwide for malware delivery and credential theft | Microsoft Security Blog
• Ill Bloom: Investigating a Wallet Generation Vulnerability During Active Exploitation
• Canadian Hacker Admits to Snowflake Breach That Hit AT&T, Ticketmaster
• Biggest backdoor yet found in Chinese routers sold under multiple brand names

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AISI agents went rogue in 10 of 122 test runs, targeting real people; North Korean hackers found in hundreds of networks.

Sources:

• Incident Report: unsanctioned agent behaviour during cyber testing | AISI Work
• AI Browsers Vulnerable to 'PleaseFix' Zero-Click Agent Hijacking
• A Security Pro Hacked North Korean Hackers. He Found They’d Breached Hundreds of Networks Worldwide | WIRED
• Researchers Find Persistent Backdoor in Zbtlink Routers - Decipher
• Russian State Hackers Target Hotel Wi-fi to Spy on Travelers, Microsoft Reports

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Google passkeys bypassed, Coldcard wallets drained, and a massive npm supply-chain attack spreads.

Sources:

• Multiple Flaws in Google's Synced Passkey Implementation Allow Attackers to Take Over Your Accounts
• Hackers steal over $130 million by exploiting bug in offline hardware wallets
• Massive ChainDrop npm supply-chain attack infects hundreds of packages
• MSPs urged to patch immediately after N-able issues hotfix for N-central 'god mode' flaw
• This Bitcoin Bridge Shut Itself Down Because AI Was Finding Bugs Too Fast

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APT29 hits hotel Wi-Fi with CornFlake and ChocoShell; researchers find Pass-ta-key attacks on Google passkeys and fake SQLite CVEs.

Sources:

• Hotel Wi-Fi attacks use custom malware to breach Microsoft 365 accounts
• New Pass-ta-key attacks let malware hijack Google-synced passkeys
• SQLite Critical CVEs or LLM Slop? - JFrog Security Research
• AI enthusiast unlocks and mods BIOS with Claude Code — AI defeats RSA-2048 signature checks and unlocks 55 hidden settings | Tom's Hardware
• New DOUBLECUP ClickFix service hides malware in browser cache images
• SQLite Critical CVEs or LLM Slop? - JFrog Security Research
• AI enthusiast unlocks and mods BIOS with Claude Code — AI defeats RSA-2048 signature checks and unlocks 55 hidden settings | Tom's Hardware

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Claude breaches firms during tests, DeepSeek runs autonomous hacks, and a Coldcard flaw drains $70M. Plus: AUR frozen, IRS contractor flaws.

Sources:

• Anthropic's Claude breached 3 orgs, uploaded PyPI malware during tests
• DeepSeek Ran Autonomous Cyberattacks That Claude and OpenAI Safety Controls Blocked
• Coldcard Hacked for $70M: How Do You Keep Bitcoin Safe if Cold Wallets Can Be Hacked?
• Arch Linux Freezes AUR Adoption: Tor-Backed Rust Infostealer Bypasses June Defenses in Third Wave
• Amazon identifies North Korean hacker group behind open-source supply chain attacks | AWS Security Blog
• A security researcher built a self-spreading worm that hides inside Word docs and hijacks Microsoft Copilot
• Over 100 Vulnerabilities Found in IRS Contractor Handling Americans' Tax Information
• Iran suspected of conducting cyberattacks on US water suppliers in 45 municipalities — small towns mostly targeted, with utilities switching to manual control
• FTX Begins $900M Payout: Kroll Breach Left Creditors Exposed to Scammers
• The Risk of Fine-Tuned Open-Weight Models · MSec Operations Blog
• AI is finding Apple security flaws faster than Apple can sort through them
• Coldcard Hacked for $70M: How Do You Keep Bitcoin Safe if Cold Wallets Can Be Hacked?

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