United Kingdom
United Kingdom Infostealer Threat Report — September 2026
09/01/2026 – 09/30/2026
Threat summary
Key figures from the month's threat activity.
Overview
Most common malware family: VIDAR (21.9% of infections). Sector with the most employee account leaks: Education. Leaked accounts fell by 21.4% compared with the previous month.
Ransomware victims in United Kingdom4,968
infected devices · from 10 families
Report periodSep 1, 2026 - Sep 30, 2026
Risk score
39-9vs previous month
- Infected devices
- 4,968
- Android devices
- 1,752
- Domains
- 68,844
- Employee accounts
- 2,127
- Customer accounts
- 472,127
- Families
- 10
Top 10 malware families
infections- 1VIDAR1,090
- 2PUREV4966
- 3ACREED674
- 4REMUS414
- 5LUMMAC214
- 6STEALC170
- 7REDLINE62
- 8ELYSIUM STEALER38
- 9MACSYNC STEALER31
- 10GHOSTBUSTERS STEALER17
The full list is in the PDF reportDownload report
Top 10 antivirus
infected devices- 1Windows Defender557
- 2Malwarebytes12
- 3Norton 360 for Gamers11
- 4Avast8
Breakdown of leaks
Breakdown by sector, file type and critical system.
Employee accounts by sector
organizationsrecordsRansomware victimsemployee accounts- 1Education184organizations25.1Krecords1Ransomware victims646employee accounts
- 2Technology38organizations117.1Krecords2Ransomware victims96employee accounts
- 3Telecommunications3organizations4.6Krecords–Ransomware victims78employee accounts
- 4Retail and e-commerce13organizations48.6Krecords–Ransomware victims26employee accounts
- 5Government12organizations14.8Krecords1Ransomware victims20employee accounts
- 6Entertainment and lifestyle2organizations4.8Krecords–Ransomware victims19employee accounts
- 7Gaming and betting3organizations22.2Krecords–Ransomware victims16employee accounts
- 8Healthcare9organizations4.5Krecords1Ransomware victims13employee accounts
- 9Finance8organizations22.8Krecords3Ransomware victims11employee accounts
- 10Travel and hospitality3organizations7.1Krecords1Ransomware victims11employee accounts
The full list is in the PDF reportDownload report
Report contents
Sections and pages of the full report.
Contents
Download the reportPreparing contents
Other reports
From the Essential plan
Infostealer Detection
See your firm's attack surface on one screen: how many findings, at which severity, on which domain.