Arctic Wolf’s 2026 Threat Report Finds Remote Access Abuse Behind 65% of Non-BEC Cases
Report discovered via Awesome Annual Security Reports.

Summary
Arctic Wolf’s 2026 report analyzes incident-response cases from Nov. 2024 to Nov. 2025, finding ransomware, BEC and data incidents made up 92% of cases, while remote access abuse drove 65% of non-BEC cases.
Key points
- The report draws on 12 months of Arctic Wolf incident-response engagements, from Nov. 1, 2024, to Nov. 1, 2025, supplemented by platform telemetry and leak-site data.
- Ransomware, business email compromise (BEC) and data incidents accounted for 44%, 26% and 22% of cases, respectively; data incidents rose from 2% in the prior report to 22%.
- Abuse of external remote access products and services—including RDP, VPN and RMM tools—accounted for 65% of non-BEC cases; known-vulnerability exploits accounted for 11%.
- Email phishing was attributed to 85% of BEC cases. The report also says ransomware was contained before detonation in 5% of cases.
- More than three-quarters of ransomware-response cases ended without a ransom payment; among cases where victims paid, Arctic Wolf reported an average 67% reduction from the initial demand.
- The report describes campaigns targeting IT staff and developers, including GPUGate, Oyster/Broomstick and a supply-chain campaign that compromised more than 180 npm packages.
- Recommendations include prioritizing patches for exploited vulnerabilities, rotating exposed credentials, securing remote access, strengthening authentication, and improving logging and network segmentation.
Article Details
- Publisher
- Arctic Wolf
- Report Period
- 2024-11-01 to 2025-11-01
- Scope
- Global digital forensics and incident response engagements, supplemented by Arctic Wolf Aurora Platform telemetry and leak-site research.
- Key Statistics
- Ransomware accounted for 44%, business email compromise (BEC) for 26%, and data incidents for 22% of Arctic Wolf IR cases; together, these categories represented 92%.
- Remote access product and service abuse accounted for 65% of non-BEC IR cases; external exploitation of known vulnerabilities accounted for 11% of non-BEC cases.
- Email phishing was attributed to 85% of BEC IR cases.
- Data incidents rose from 2% of IR cases in the prior report to 22% in this reporting period.
- The median initial ransom demand fell 20% to $414,000; in 23% of ransomware cases where victims paid, Arctic Wolf reported an average 67% reduction from the initial demand.
- Recommendations
- Minimize internet exposure, prioritize patching known exploited vulnerabilities—especially on edge devices—and rotate credentials after suspected vulnerability exposure.
- Isolate management interfaces from public access, restrict administrative access, and use IP-based filtering.
- Require strong, phishing-resistant multi-factor authentication and regularly review VPN accounts.
- Centralize logs and use behavioral analytics to detect lateral movement and persistence.
- Segment critical systems, and maintain and test incident-response plans and backups.
MITRE ATT&CK
T1133 · External Remote ServicesThe report attributes many non-BEC incidents to abuse of external remote access services, including RDP, VPN, and RMM.T1195.002 · Compromise Software Supply ChainThe report describes a supply-chain campaign that compromised over 180 npm packages.T1566 · PhishingThe report says email phishing caused 85% of BEC IR cases.
CVE
CVE-2021-312078. **CVE-2021-34473 / CVE-2021-34523 / CVE-2021-31207**: ProxyToken: On-Premises Microsoft Exchange Authentication Bypass VulnerabilityCVE-2021-344738. **CVE-2021-34473 / CVE-2021-34523 / CVE-2021-31207**: ProxyToken: On-Premises Microsoft Exchange Authentication Bypass VulnerabilityCVE-2021-345238. **CVE-2021-34473 / CVE-2021-34523 / CVE-2021-31207**: ProxyToken: On-Premises Microsoft Exchange Authentication Bypass VulnerabilityCVE-2023-202695. **CVE-2023-20269**: Cisco ASA Firewall VPN Authentication VulnerabilityCVE-2023-35194. **CVE-2023-3519**: Citrix ADC, Citrix Gateway/ Citrix Bleed Remote Code Execution VulnerabilityCVE-2023-487887. **CVE-2023-48788**: FortiClientEMS Remote Code Execution VulnerabilityCVE-2023-49662. **CVE-2023-4966**: Citrix NetScaler ADC & Gateway Buffer Overflow VulnerabilityCVE-2024-17083. **CVE-2024-1709 / CVE-2024-1708**: ConnectWise ScreenConnect Authentication Bypass VulnerabilityCVE-2024-17093. **CVE-2024-1709 / CVE-2024-1708**: ConnectWise ScreenConnect Authentication Bypass VulnerabilityCVE-2024-407661. **CVE-2024-40766**: SonicWall SonicOS Improper Access Control VulnerabilityCVE-2024-5370410. **CVE-2024-53704**: SonicOS Authentication Bypass VulnerabilityCVE-2024-555916. **CVE-2024-55591**: FortiOS and FortiProxy Authentication Bypass VulnerabilityCVE-2024-559569. **CVE-2024-55956**: Cleo LexiCom, VLTransfer, and Harmony Unauthenticated Remote Code Execution
People
Threat Actors
AkiraNamed among the ransomware groups leading Arctic Wolf's ransomware IR case leaderboard.DragonForceNamed in the slash-linked leaderboard entry “RansomHub/DragonForce”; the report does not clarify the relationship between the names.FogNamed among the ransomware groups leading Arctic Wolf's ransomware IR case leaderboard.INCNamed as a ransomware group that climbed onto the report's leaderboard.LynxNamed as a ransomware group that climbed onto the report's leaderboard.PlayNamed among the ransomware groups leading Arctic Wolf's ransomware IR case leaderboard.QilinNamed as a ransomware group that climbed onto the report's leaderboard.RansomHubNamed in the slash-linked leaderboard entry “RansomHub/DragonForce”; the report does not clarify the relationship between the names.RhysidaNamed as a ransomware group that climbed onto the report's leaderboard.Silent RansomNamed as a ransomware group that climbed onto the report's leaderboard.
Vendors
Products
GitHub Desktop- **GPUGate**: Used GitHub Desktop installers embedded with GPU-gated decryption routines to target developers and gamers.PuTTY- **Oyster/Broomstick**: Used SEO poisoning and trojanized IT tools like PuTTY and WinSCP.WinSCP- **Oyster/Broomstick**: Used SEO poisoning and trojanized IT tools like PuTTY and WinSCP.