All news in category “Incidents and Data Breaches”

🔔 Toys R Us Canada has notified customers that a threat actor leaked records taken from its database after a posting on the dark web on July 30, 2025. An investigation with third-party cybersecurity experts confirmed the data's authenticity and found exposed fields may include full name, physical address, email, and phone number, while passwords and payment card details were not exposed. The retailer says it has strengthened IT security, is notifying Canadian privacy regulators, and warns customers to beware of phishing attempts.

🛡️ LockBit has reemerged after a disruption in early 2024 and is actively extorting new victims. Check Point Research identified roughly a dozen organizations hit in September 2025, and about half of those incidents involved the new LockBit 5.0 variant, labeled ChuongDong. The group is deploying attacks across Windows, Linux and ESXi environments in Europe, the Americas and Asia. Check Point Harmony Endpoint and Quantum customers are protected via Threat Emulation, which can block these attacks before encryption occurs.

🔍 Sekoia.io researchers uncovered a cyber-espionage campaign, beginning June 2025, that targets Indian government Linux systems using a new Golang RAT named DeskRAT. The operation primarily abused the Indian government‑endorsed BOSS Linux distribution via phishing ZIPs that executed Bash downloaders and displayed decoy PDFs. Attackers used dedicated staging servers and a new operator dashboard to manage victims and exfiltrate files.

🛡️ European defense and aerospace firms are being targeted in a renewed Operation Dream Job campaign attributed to North Korean-linked Lazarus actors, ESET reports. Active since March 2025, attackers use social-engineering job lures and trojanized documents to deploy ScoringMathTea and MISTPEN-like downloaders such as BinMergeLoader that abuse Microsoft Graph API. The goal is theft of proprietary UAV manufacturing know‑how and related intellectual property.

🛡️ ESET attributes a March 2025 wave of cyber-espionage against three European defense firms to the North Korea-aligned Lazarus Group, describing it as a renewed phase of Operation DreamJob. Targets tied to UAV development were lured with convincing fake job offers that delivered trojanized PDF readers and chained loaders. The primary payload, ScoringMathTea, is a remote access Trojan that provides attackers full control, and researchers found malicious components disguised as legitimate open-source tools.

🛡️ Microsoft said it disrupted a ransomware campaign that used fake Teams installers to deliver a backdoor and prepare for encryption operations. Attackers lured victims with impersonated MSTeamsSetup.exe files hosted on malicious domains, which installed a loader and a fraudulently signed Oyster backdoor. The group identified as Vanilla Tempest intended to follow with Rhysida ransomware. Microsoft revoked over 200 fraudulent code-signing certificates and says a fully enabled Defender Antivirus will block the threat.

🔍 North Korean-linked Lazarus actors ran an Operation DreamJob campaign in late March that targeted three European defense companies involved in UAV technology. Using fake recruitment lures, victims were tricked into installing trojanized open-source applications and plugins which loaded malicious payloads via DLL sideloading. Final-stage malware included the ScoringMathTea RAT, while an alternate chain used the BinMergeLoader (MISTPEN) to abuse Microsoft Graph API tokens. ESET published extensive IoCs to aid detection.

🛡️ Check Point Research uncovered the YouTube Ghost Network, a large-scale operation that used fake and compromised accounts to distribute infostealers like Rhadamanthys and Lumma. More than 3,000 malicious videos — often disguised as cracked software or game hacks — were reported and removed after being linked to password-protected archives that carried the malware. Compromised accounts, coordinated comment manipulation, and false endorsements were used to build trust and drive downloads.

⚠️ F5 disclosed a major intrusion in which a sophisticated, likely nation-state threat actor maintained long-term access to its internal network. During the compromise the attackers gained control of the build and distribution environment for BIG-IP updates and exfiltrated proprietary source code, documentation of unpatched vulnerabilities, and customer configuration files. F5 warned this data could enable widespread supply-chain and targeted attacks against many sensitive networks.

🔒Researchers detail a threat cluster called Jingle Thief that leverages phishing and smishing to harvest credentials and compromise cloud environments of retailers and consumer services to issue unauthorized gift cards. Palo Alto Networks Unit 42 links the activity to financially motivated actors and notes coordinated campaigns in April-May 2025. The attackers favor identity misuse over malware, persistently mapping tenants, abusing Microsoft 365 services, and minimizing logs to sustain large-scale fraud.

🔒 The cyberattack on Jaguar Land Rover in late August forced a global shutdown of IT systems and halted production across its factories. According to the Cyber Monitoring Centre, the weeks-long outage inflicted an estimated £1.9 billion in losses and affected more than 5,000 organizations, including suppliers and dealers. The UK government intervened with guarantees and up to £1.5 billion in support to secure the supply chain as production is gradually resumed.

⚠️ Sansec warns that threat actors have begun exploiting CVE-2025-54236 (SessionReaper) in Adobe Commerce and Magento Open Source, with over 250 attack attempts recorded in 24 hours. The critical (CVSS 9.1) improper input validation flaw can enable customer account takeover via the Commerce REST API, and Adobe released a patch last month. Sansec cautions that 62% of Magento stores remain unpatched six weeks after disclosure, and observed activity includes dropping PHP webshells via '/customer/address_file/upload' and probing phpinfo from several attacker IPs.

🛩️ ESET researchers observed a renewed Operation DreamJob campaign that targeted European defense and UAV-related companies and has been linked to the North Korea-aligned Lazarus group. Attackers used social-engineering lures and trojanized open-source projects on GitHub to deliver loaders and the ScoringMathTea RAT. Techniques included DLL side-loading, reflective in-memory loading and encrypted C2 channels. The apparent objective was theft of proprietary UAV designs and manufacturing know-how.

🔐 In episode 440 Graham Cluley and guest Scott Helme examine an unusual insider exploitation where Romanian prison self‑service web kiosks let inmates access and alter records. They also explore the growing threat of third‑party JavaScript on checkout pages and how the updated PCI DSS aims to curb Magecart‑style skimmers. Plus, the hosts cover automation with Keyboard Maestro and video creation using Screen Studio.

⚠ State-sponsored Iranian group MuddyWater deployed version 4 of the Phoenix backdoor against more than 100 government and diplomatic entities across the Middle East and North Africa. The campaign began on August 19 with phishing sent from a NordVPN-compromised account and used malicious Word macros to drop a FakeUpdate loader that writes C:\ProgramData\sysprocupdate.exe. Researchers observed Phoenix v4 using AES-encrypted embedded payloads, COM-based persistence, WinHTTP C2 communications and an accompanying Chrome infostealer, while server-side C2 was taken offline on August 24, suggesting a shift in operational tooling.

🔒 Group-IB links a broad espionage campaign to Iran-aligned MuddyWater that leveraged a compromised email account accessed via NordVPN to send convincing phishing messages. The actor distributed weaponized Microsoft Word documents that coax recipients to enable macros, which execute VBA droppers that write and decode a FakeUpdate loader. FakeUpdate installs an AES-encrypted payload that launches the Phoenix v4 backdoor. Targets exceeded 100 organisations across the MENA region, predominantly diplomatic and government entities.

🕵️ SentinelOne describes a coordinated spear-phishing campaign named PhantomCaptcha that used booby-trapped PDFs and a fake Zoom site to deliver a WebSocket-based remote access trojan (RAT). The October 8, 2025 operation targeted members of humanitarian and government organizations connected to Ukraine, including Red Cross, UNICEF Ukraine, and several regional administrations. Victims were lured to a ClickFix-style fake Cloudflare CAPTCHA that prompted a malicious PowerShell command, which fetched an obfuscated downloader and a second-stage payload. The final WebSocket RAT connects to wss://bsnowcommunications[.]com:80 and enables remote command execution, data exfiltration, and further malware deployment.

🛡️Researchers uncovered the 'PhantomCaptcha' phishing campaign that impersonated the Ukrainian President's Office to target humanitarian and government organisations supporting Ukraine relief efforts. Beginning 8 October 2025, malicious PDFs directed recipients to a fake Zoom site and a Cloudflare-like verification page that tricked users into executing PowerShell via a 'Paste and Run' technique. The multi-stage malware included a large obfuscated downloader, a reconnaissance module and a WebSocket-based RAT. SentinelLABS and the Digital Security Lab of Ukraine advise monitoring PowerShell, enforcing execution policies and tracking suspicious WebSocket connections.

🔒 The FinWise data breach involved a former employee who retained credentials and accessed systems on May 31, 2024, exposing personal records for 689,000 American First Finance customers. The intrusion remained undetected until June 18, 2025, prompting lawsuits alleging inadequate encryption and weak security governance. Experts say robust protection requires not only encryption but effective key management, strict access controls, and proactive monitoring. Vendor solutions such as D.AMO are presented as integrated platforms combining encryption, an isolated KMS, and centralized control to mitigate insider risk.

🔒 Researchers have uncovered a global phishing campaign that used compromised mailboxes to deliver malicious Microsoft Word attachments, attributed with high confidence to the Iran-linked actor MuddyWater by Group-IB. The operation abused a NordVPN-accessed mailbox to send trusted-looking messages that prompted users to enable macros, which then installed the Phoenix v4 backdoor. Investigators also found RMM tools (PDQ, Action1, ScreenConnect) and a Chromium_Stealer credential stealer, while infrastructure traced to the domain screenai[.]online and an IP tied to NameCheap-hosted services.