Threat actor

APT28

In 27 briefs, most recently 25 October 2026. RSS for this tag

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Coverage in DanSec Daily

  1. Quest Diagnostics and Capcom breaches, LiteLLM master key leak, and unpatched PHP2Shell RCE drawing Mirai botnet exploitation attempts.
  2. Quest Diagnostics patient data breach, Capcom's 11.7M-record exposure, and PHP2Shell RCE with no patch, plus Brotli and ArubaOS flaws.
  3. OVHcloud CLI and Rank Math PRO supply chain compromises, the Ahold Delhaize cyberattack, and actively exploited Plex2Shell flaws.
  4. Hasbro breach, ATF ransomware incident and Hugging Face takeover by rogue AI agents lead; also ServiceNow and PaperCut flaws.
  5. The TeamPCP supply chain attacks on Checkmarx and Bitwarden, ShinyHunters breaches of ADT and Medtronic, and new Windows privilege escalation flaws.
  6. Eurail breach exposing 300,000+ passport records, ChipSoft ransomware shutdown, and Smart Slider 3 Pro backdoored update supply chain attack.
  7. Bitcoin Depot $3.6M crypto theft, Signature Healthcare hospital cyberattack, and TeamPCP supply chain breach exposing Cisco source code.
  8. APT28 router DNS hijacking stealing Microsoft 365 tokens, a SaaS integrator breach hitting a dozen-plus firms, and Flowise RCE flaw under active exploitation.
  9. Stryker wiper attack wiping ~80,000 devices, Lazarus linked to Bitrefill breach, and PolyShell Magento RCE flaw.
  10. Ericsson data breach, suspected FBI wiretap network breach, and Salesforce data theft campaign, plus APT28 espionage malware and Ivanti EPM exploitation.
  11. The Wikipedia JavaScript worm, a $46M crypto theft arrest, LeakBase's takedown, and Cisco SD-WAN zero-days exploited in the wild.
  12. The Oracle E-Business Suite breach at Madison Square Garden, APT28's MSHTML zero-day CVE-2026-21513, and North Korea's Contagious Interview npm campaign.
  13. Optimizely vishing breach, Vanta Diagnostics breach claimed by Everest ransomware, and actively exploited RoundCube Webmail flaws.
  14. UNC3886 breaches Singapore's top telcos, Warlock exploits SmarterMail to hit SmarterTools, and a Firebase flaw exposes 300M Chat & Ask AI messages.
  15. Notepad++ supply chain attack, ShinyHunters' Panera Bread leak of 5.1M records, and actively exploited SolarWinds Web Help Desk RCE added to CISA KEV.
  16. Hackers selling Target source code, the n8n "Ni8mare" flaw hitting about 60,000 instances, and a Gogs zero-day under a CISA patch order.
  17. IDHS exposing ~700,000 residents' health data, a VMware ESXi zero-day exploited via SonicWall VPN, and Trend Micro Apex Central RCE patches.
  18. LKQ Oracle EBS breach, Cisco AsyncOS zero-day CVE-2025-20393 exploited by China-linked APT, and Kimwolf botnet hijacking 1.8M Android devices for DDoS.
  19. PowerSchool sued by Texas over 62M-student breach; Sitecore zero-day exploited with WeepSteel malware; APT28 deploys NotDoor Outlook backdoor.
  20. Jaguar Land Rover cyberattack disrupts operations, Workiva breach via Salesforce CRM, and Salesloft/Drift fallout hits Cloudflare, Palo Alto Networks and …
  21. NCSC attributes Microsoft 365 Authentic Antics malware to APT28, CrushFTP zero-day hijacks servers, and Google sues BADBOX 2.0 botnet operators.
  22. Nucor's data-theft breach, a trojanized SonicWall NetExtender VPN client, Microsoft Exchange login-page injections, and APT28 Signal-based malware campaigns in …
  23. The McLaren Health Care breach (743,000 patients), Citrix NetScaler patches, and Salt Typhoon's breach of Canadian telecoms via a Cisco flaw.
  24. Marks & Spencer cyberattack disrupting operations, Coinbase breach hitting 69,461 customers, and the Lumma infostealer takedown.
  25. Coinbase breach via bribed support agents, Nucor halted by a cyber incident, and APT28 exploiting webmail zero-days in the RoundPress campaign.
  26. The Coinbase insider data breach and extortion attempt, SAP NetWeaver exploitation by BianLian and RansomExx, and Samsung MagicINFO Mirai attacks.
  27. SK Telecom's USIM breach and SIM replacements, APT28's attribution by France, and the AirBorne AirPlay zero-click RCE flaws.