All news in category "Incidents and Data Breaches"

Rhysida Ransomware Group Lists German Manufacturer Geiger

🔒 On October 17, the ransomware group Rhysida posted the German machine manufacturer Geiger on a darknet victims list, claiming to offer data stolen from the company. The attackers set an asking price of 10 BTC (roughly €1 million) and indicated a sale deadline of October 24, 2025, without specifying the scope or types of data. Geiger has not publicly responded to the claim. Security researchers characterize Rhysida as financially motivated and likely operating from Russia or the CIS.

Salt Typhoon Exploits Citrix NetScaler in Global Attacks

🔒In a global intrusion tracked by Darktrace, the China-linked group Salt Typhoon exploited a Citrix NetScaler Gateway vulnerability to gain access and maintain persistence. Attackers employed DLL sideloading to deploy the SNAPPYBEE (Deed RAT) backdoor alongside legitimate antivirus executables, then moved laterally to Citrix Virtual Delivery Agent hosts while obscuring origin via SoftEther VPN infrastructure. C2 channels used HTTP (with Internet Explorer user-agent headers and URIs like "/17ABE7F017ABE7F0") and unidentified TCP protocols; the domain aar.gandhibludtric[.]com has prior links to the group. Darktrace emphasised the need for anomaly-based behavioural detection to surface such stealthy activity early.

Developers leaking secrets via VSCode and OpenVSX extensions

🔒 Researchers at Wiz found that careless developers published Visual Studio extensions to the VSCode Marketplace and OpenVSX containing more than 550 validated secrets across over 500 extensions, including API keys and personal access tokens for providers such as OpenAI, AWS, GitHub, Azure DevOps, and multiple databases. The primary cause was bundled dotfiles (notably .env) and hardcoded credentials in source and config files, with AI-related configs and build manifests also contributing. Microsoft and OpenVSX collaborated with Wiz on coordinated remediation: notifying publishers, adding pre-publication secrets scanning, blocking verified secrets, and prefixing OVSX tokens to reduce abuse.

SIMCARTEL Takedown: Major SIM-Box Supply Network Bust

🔒 Law enforcement dismantled a criminal SIM-card supply network known as 'SIMCARTEL' following coordinated actions across multiple European countries. The now-defunct service operated a commercial SIM-box platform that let customers rent phone numbers from over 80 countries to create and manage an estimated 49 million fake online accounts used in phishing, fraud and other serious offences. Authorities seized five servers, around 1,200 SIM-box devices (operating ~40,000 SIMs), hundreds of thousands of SIM cards, froze more than $500,000 in bank funds and over $330,000 in crypto, and took down two domain services linked to the operation.

131 Chrome Extensions Hijack WhatsApp Web for Spam

🔍 Cybersecurity researchers uncovered a coordinated operation that used 131 rebranded Chrome extensions—about 20,905 active users—to inject automation code into WhatsApp Web and conduct large-scale spam campaigns targeting Brazilian users. Socket found the add-ons share a common codebase, design patterns, and infrastructure and are primarily published under WL Extensão variants. The extensions pose a high spam risk by automating bulk outreach and scheduling to evade WhatsApp rate limits and violate Chrome Web Store policies.

Microsoft Revokes 200+ Fraudulent Code-Signing Certificates

🔒 Microsoft Threat Intelligence has revoked more than 200 code-signing certificates that were fraudulently used to sign counterfeit Microsoft Teams installers delivering a persistent backdoor and ransomware. The campaign, tracked as Vanilla Tempest (also known as Vice Spider/Vice Society), employed SEO poisoning and malvertising to lure users to spoofed download sites hosting fake MSTeamsSetup.exe files that deployed the Oyster backdoor and ultimately Rhysida ransomware. Microsoft says the actor abused Trusted Signing and services such as SSL.com, DigiCert and GlobalSign to sign malicious binaries. A fully enabled Microsoft Defender Antivirus detects and blocks these threats, and Microsoft provides guidance through Microsoft Defender for Endpoint for mitigation and investigation.

Hackers Leak Personal Data of Hundreds of US Agents

🔓 A hacking collective known as The Com has posted alleged personal details — names, addresses, and phone numbers — of hundreds of US government employees on private Telegram channels. Reporting by 404 Media indicates spreadsheets containing roughly 680 DHS entries, over 170 FBI email addresses, and more than 190 Department of Justice records were shared; the origin of the information is unclear. The group, which has ties to known ransomware and extortion actors, suggested further doxing and even solicited criminal collaboration, raising concerns about threats and physical safety for affected personnel and their families.

China Accuses U.S. of Attacking National Time Authority

🔍 China’s Ministry of State Security has accused the U.S. National Security Agency of conducting cyber intrusions against the National Time Service Center in Xi'an, alleging activity beginning in March 2022. The statement says the campaign initially exploited vulnerabilities in employees’ mobile phones and later affected center computers. Beijing warned that the center’s role in providing official time underpins communications, finance and power systems, and that interference could cause major disruptions. U.S. officials did not immediately respond to the allegation.

SharePoint Flaws Led to Breach at Kansas City Nuclear Plant

🔒 A foreign threat actor exploited unpatched Microsoft SharePoint vulnerabilities to infiltrate the Kansas City National Security Campus (KCNSC), which produces most non‑nuclear components for U.S. nuclear weapons. Honeywell FM&T, which manages the site for the NNSA, and the Department of Energy did not respond to requests for comment. Federal responders, including the NSA, were onsite in early August after Microsoft issued fixes on July 19. Attribution remains disputed between Chinese-linked groups and possible Russian actors; there is no public evidence that classified information was taken.

China Accuses NSA of Multi-Stage Attack on NTSC Systems

🕒 The Chinese Ministry of State Security (MSS) has accused the U.S. National Security Agency (NSA) of a "premeditated" multi-stage cyber intrusion targeting the National Time Service Center (NTSC), which manages Beijing Time. The MSS says the campaign began with SMS-based compromises of staff devices in March 2022 and escalated through credential reuse and a deployed "cyber warfare platform" between August 2023 and June 2024. According to the statement, the platform employed 42 specialized tools, forged digital certificates, and high-strength encryption while routing traffic through VPSes across the U.S., Europe, and Asia; Chinese agencies say they detected, neutralized the activity, and reinforced defenses.

TikTok Videos Push Infostealers via ClickFix Activation Scams

🔒 Cybercriminals are using TikTok videos disguised as free activation guides for software such as Windows, Adobe, Spotify, and Discord to distribute info‑stealing malware via a ClickFix technique. The videos instruct users to run a short PowerShell command that fetches a script from slmgr.win, which then downloads a variant of Aura Stealer and an additional payload from Cloudflare Pages. Victims should assume credentials are compromised, reset passwords, and avoid running copied commands in shells or terminal windows.

Europol Dismantles International SIM Farm Network; SIMCARTEL

🚨 Europol announced the disruption of a sophisticated cybercrime-as-a-service SIM farm in Operation SIMCARTEL, resulting in seven arrests and 26 searches across multiple countries. Authorities seized 1,200 SIM box devices containing about 40,000 active SIM cards, dismantled five servers and took over two websites, and froze significant cash and cryptocurrency assets. The platform supplied numbers from over 80 countries and is tied to the creation of more than 49 million online accounts used in phishing, smishing, investment fraud and other serious offences.

Google Ads Promote Fake Homebrew, LogMeIn, TradingView Sites

🚨 Researchers uncovered a malvertising campaign that uses Google Ads to surface convincing fake Homebrew, LogMeIn, and TradingView download sites targeting macOS developers. The pages prompt victims to copy a curl command into Terminal, but the clipboard often contains a base64-encoded installer that decodes and runs an install.sh payload. That script removes quarantine flags, bypasses Gatekeeper, and delivers infostealers that check for analysis environments before executing. Operators deploy AMOS and Odyssey, which harvest browsers, wallets, and credentials; users are urged not to paste unknown commands into Terminal.

New .NET CAPI Backdoor Targets Russian Auto and E-commerce

🔒 Seqrite Labs uncovered a new .NET implant named CAPI Backdoor linked to a phishing campaign targeting Russian automobile and e-commerce organizations. The attack leverages a ZIP archive containing a decoy Russian tax notice and a Windows LNK that loads a malicious adobe.dll via the legitimate rundll32.exe. The backdoor gathers system and browser data, takes screenshots, and communicates with a remote C2 for commands and exfiltration. Persistence is achieved through scheduled tasks and a Startup LNK.

Silver Fox Expands Winos 4.0 Attacks to Japan, Malaysia

🔎 Silver Fox operators have expanded the Winos 4.0 (ValleyRAT) campaign from China and Taiwan to target Japan and Malaysia, and are also deploying a secondary RAT tracked as HoldingHands. The actors use phishing emails with booby‑trapped PDFs, SEO‑poisoned pages and targeted .LNK résumé lures to deliver multiple payloads, including Winos modules and HoldingHands. Observed techniques include DLL sideloading, Task Scheduler recovery abuse, anti‑VM checks and AV termination to maintain persistence and evade detection.

UK Weighed Destroying Data Hub After Decade-Long Intrusion

🔐 British officials briefly considered physically destroying a government data hub after uncovering a decade-long intrusion attributed to China-aligned actors. The breach reportedly exposed official-sensitive and secret material on government servers, though no top secret data was taken. Rather than demolish the facility, the government implemented alternative protections and commissioned a classified review. Cybersecurity experts say the episode underscores the critical need to secure supply chains and hunt long-term APT presence.

Envoy Air Confirms Oracle E-Business Suite Data Theft

🔒 Envoy Air confirmed that data was compromised from its Oracle E-Business Suite application after the Clop extortion gang listed American Airlines on its leak site. The carrier said it immediately launched an investigation, contacted law enforcement, and determined that no sensitive or customer data were affected, though limited business information and commercial contact details may have been exposed. The incident is tied to an August campaign by Clop, which exploited an E-Business Suite zero‑day (CVE‑2025‑61882) and is now publishing claimed stolen files.

Europol Dismantles Large SIM-box Service Used for Fraud

🔍 Europol, together with national police units and the Shadowserver Foundation, dismantled an illegal SIM‑box service codenamed SIMCARTEL that rented phone numbers to criminals for creating fraudulent online accounts. The service operated about 1,200 SIM‑box devices with roughly 40,000 active SIM cards and offered numbers tied to individuals in more than 80 countries via seized sites gogetsms.com and apisim.com. Authorities linked the infrastructure to thousands of fraud cases and at least EUR 4.5 million in losses in Austria and EUR 420,000 in Latvia.

Three Dutch Teens Linked to Russian-Associated Hackers

🧑‍💻 Three 17-year-olds in the Netherlands are suspected of providing services to a foreign power after one was found communicating with an unnamed Russian-government-affiliated hacking group. Prosecutors say the linked suspect directed the others to repeatedly map Wi‑Fi networks in The Hague and then sold the collected data to the client's contact for a fee. The investigation, opened after a report from the Military Intelligence and Security Service, led to two arrests on 22 September and seizure of devices from a third minor. An updated Criminal Code effective 15 May 2025 now criminalizes digital espionage, carrying up to eight years' imprisonment (or up to 12 years in the most serious cases).

North Korean Hackers Merge BeaverTail and OtterCookie

🔐 Cisco Talos reports that a North Korean-linked threat cluster has blended features of its BeaverTail and OtterCookie JavaScript malware families, with recent OtterCookie variants adding keylogging, screenshot capture, and clipboard monitoring. The intrusion chain observed involved a trojanized Node.js application called Chessfi and a malicious npm dependency published on August 20, 2025 that executed postinstall hooks to launch multi-stage payloads. Talos tied the activity to the Contagious Interview recruitment scam and highlighted continued modularization and abuse of legitimate open-source packages and public Git hosting to distribute malicious code.