South Korea fines telco giant KT $39 million for customer data breach

South Korea's Personal Information Protection Commission (PIPC) has fined telecommunications giant KT Corporation KRW 53.979 billion ($39 million) over data protection violations. [...]

https://www.bleepingcomputer.com/news/security/south-korea-fines-telco-giant-kt-39-million-for-customer-data-breach/

 Anthropic's Claude breached 3 orgs, uploaded PyPI malware during tests

One of Anthropic's Claude models built and uploaded a malicious Python package to PyPI during a botched security evaluation, where it ran on 15 real systems and stole credentials from a security vendor. It was one of three incidents affecting real companies. [...]

https://www.bleepingcomputer.com/news/security/anthropics-claude-breached-3-orgs-uploaded-pypi-malware-during-tests/

 ESET tracks rise in malicious AI skills and adaptable malware

Attackers are adapting established techniques to AI platforms, emerging technologies, and changing user behavior. ESET's new threat report examines the rise of malicious AI skills, AI-assisted malware, ClickFix attacks, record quishing activity, and ransomware tools designed to disable security software. [...]

https://www.bleepingcomputer.com/news/security/eset-tracks-rise-in-malicious-ai-skills-and-adaptable-malware/

 CISA warns of cyberattacks disrupting U.S. water utilities

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning of a significant increase in attacks targeting internet-exposed programmable logic controllers (PLCs) in the water and wastewater systems sector. [...]

https://www.bleepingcomputer.com/news/security/cisa-warns-of-cyberattacks-disrupting-us-water-utilities/

 Hacker uses DeepSeek AI to autonomously attack vulnerable servers

A Chinese-speaking threat actor is using the DeepSeek AI model and the open-source Hermes Agent to conduct autonomous cyberattacks on exposed servers with limited human involvement. [...]

https://www.bleepingcomputer.com/news/security/hacker-uses-deepseek-ai-to-autonomously-attack-vulnerable-servers/

 OpenAI says its new GPT 5.6 models are becoming more cost-efficient

OpenAI says it has reduced the price of two GPT-5.6 models, cutting Luna's API price by 80% and Terra's by 20% as it works to make its models more efficient. [...]

https://www.bleepingcomputer.com/news/artificial-intelligence/openai-says-its-new-gpt-56-models-are-becoming-more-cost-efficient/

 Online ad firm Adform’s script compromised to steal cryptocurrency

Online advertising firm Adform suffered a supply-chain attack that delivered cryptocurrency-stealing scripts to websites using its ad platform, replacing wallet addresses copied to visitors' clipboards with ones controlled by an attacker. [...]

https://www.bleepingcomputer.com/news/security/online-ad-firm-adforms-script-compromised-to-steal-cryptocurrency/

 Arch Linux disables AUR package adoption to stop malware flood

The Arch Linux project has temporarily disabled adoption of Arch User Repository (AUR) packages after a surge in malicious takeovers of existing packages. [...]

https://www.bleepingcomputer.com/news/security/arch-linux-disables-aur-package-adoption-to-stop-malware-flood/

 Amgen says cloud data breach exposed patient health, proprietary info

Pharmaceutical company Amgen says it suffered a data breach after threat actors stole corporate data and patient information stored in multiple cloud systems operated by third-party service providers. [...]

https://www.bleepingcomputer.com/news/security/amgen-says-cloud-data-breach-exposed-patient-health-proprietary-info/

 Rails patches critical Active Storage flaw with RCE potential

A critical vulnerability in the Active Storage framework can allow an unauthenticated attacker to read arbitrary files from a Rails application, and potentially escalate to remote code execution (RCE). [...]

https://www.bleepingcomputer.com/news/security/rails-patches-critical-active-storage-flaw-with-rce-potential/

 Google Chrome may soon block New Tab hijacker extensions by default

Google is preparing a new Chrome security feature that would block policy-installed extensions from hijacking the New Tab page or changing the default search engine. [...]

https://www.bleepingcomputer.com/news/google/google-chrome-may-soon-block-new-tab-hijacker-extensions-by-default/

 COLDCARD wallet RNG flaw likely linked to $88 million Bitcoin theft

A vulnerability in COLDCARD hardware wallet firmware allowed attackers to steal an estimated $88.6 million in Bitcoin from thousands of wallets whose seeds were generated using a flawed random number generator. [...]

https://www.bleepingcomputer.com/news/security/coldcard-wallet-rng-flaw-likely-linked-to-88-million-bitcoin-theft/

 OpenAI teases Astra, its next major AI model, after it solves 10 long-standing math problems

OpenAI has revealed Astra, an unreleased model designed to tackle complex, long-running tasks, after an internal version produced ten significant advances in mathematics and theoretical computer science. [...]

https://www.bleepingcomputer.com/news/artificial-intelligence/openai-teases-astra-its-next-major-ai-model-after-it-solves-10-long-standing-math-problems/

 Inside the Underground Business of BTMOB RAT

Flare researchers analyzed thousands of underground posts to examine how the BTMOB Android malware operation evolved into a fragmented ecosystem of resellers, source-code vendors, custom versions, and competing sales channels. [...]

https://www.bleepingcomputer.com/news/security/inside-the-underground-business-of-btmob-rat/

 ExfilSquad hackers leak info of over 100,000 UK police officers, staff

A cyberattack on the U.K.'s Police National Legal Database (PNLD) has compromised contact data of more than 100,000 police officers and other criminal justice professionals. [...]

https://www.bleepingcomputer.com/news/security/exfilsquad-hackers-leak-info-of-over-100-000-uk-police-officers-staff/

 N-able warns of N-central auth bypass flaw exploited in attacks

N-able is warning customers that hackers are exploiting an authentication bypass vulnerability (CVE-2026-18577) affecting both hosted and on-premises N-central servers. [...]

https://www.bleepingcomputer.com/news/security/n-able-warns-of-n-central-auth-bypass-flaw-exploited-in-attacks/

 Fake Roblox Xeno script launcher pushes infostealer, RAT malware

Fake Xeno Executor installers are infecting unsuspecting Roblox players with malware that provides remote access and steals sensitive information. [...]

https://www.bleepingcomputer.com/news/security/fake-roblox-xeno-script-launcher-pushes-infostealer-rat-malware/

 New DOUBLECUP ClickFix service hides malware in browser cache images

A new Russian loader-as-a-service named DOUBLECUP uses ClickFix attacks to hide malicious code in PNG images cached by victims' browsers, ultimately delivering CountLoader to Windows and macOS devices and a new remote access trojan named DeviceManager to Windows systems. [...]

https://www.bleepingcomputer.com/news/security/new-doublecup-clickfix-service-hides-malware-in-browser-cache-images/

 New Pass-ta-key attacks let malware hijack Google-synced passkeys

Security researchers have discovered three attacks that allow malware on already-compromised Windows devices to abuse Google Password Manager's synced passkeys to take over accounts, bypass user verification, and extract passkey private keys. [...]

https://www.bleepingcomputer.com/news/security/new-pass-ta-key-attacks-let-malware-hijack-google-synced-passkeys/

 Hotel Wi-Fi attacks use custom malware to breach Microsoft 365 accounts

Microsoft has linked a global campaign targeting hospitality Wi-Fi networks to the Russian threat actor Midnight Blizzard, also known as APT29. [...]

https://www.bleepingcomputer.com/news/security/hotel-wi-fi-attacks-use-custom-malware-to-breach-microsoft-365-accounts/