United Kingdom
United Kingdom Infostealer Threat Report — April 2026
04/01/2026 – 04/30/2026
Threat summary
Key figures from the month's threat activity.
Overview
Most common malware family: VIDAR (27.9% of infections). Sector with the most employee account leaks: Education. Leaked accounts fell by 28.6% compared with the previous month.
Ransomware victims in United Kingdom4,263
infected devices · from 10 families
Report periodApr 1, 2026 - Apr 30, 2026
Risk score
36-28vs previous month
- Infected devices
- 4,263
- Android devices
- 1,590
- Domains
- 38,671
- Employee accounts
- 847
- Customer accounts
- 233,167
- Families
- 10
Top 10 malware families
infections- 1VIDAR1,188
- 2REDLINE594
- 3PUREV4566
- 4STEALC375
- 5ARKEI312
- 6REMUS207
- 7ELYSIUM STEALER115
- 8LUMMAC96
- 9SHAPESHIFTER85
- 10GHOSTBUSTERS STEALER14
The full list is in the PDF reportDownload report
Top 10 antivirus
infected devices- 1Windows Defender1,310
- 2Reason Cybersecurity15
- 3Norton 360 for Gamers6
Breakdown of leaks
Breakdown by sector, file type and critical system.
Employee accounts by sector
organizationsrecordsRansomware victimsemployee accounts- 1Education93organizations11.7Krecords1Ransomware victims279employee accounts
- 2Technology19organizations58.3Krecords8Ransomware victims37employee accounts
- 3Telecommunications4organizations2.1Krecords–Ransomware victims18employee accounts
- 4Government4organizations5.9Krecords–Ransomware victims10employee accounts
- 5Manufacturing and industry4organizations1.4Krecords8Ransomware victims10employee accounts
- 6Travel and hospitality2organizations3.6Krecords–Ransomware victims8employee accounts
- 7Retail and e-commerce3organizations21.2Krecords3Ransomware victims7employee accounts
- 8Gaming and betting3organizations15.2Krecords–Ransomware victims7employee accounts
- 9Nonprofit4organizations2.2Krecords–Ransomware victims7employee accounts
- 10Healthcare5organizations2.0Krecords5Ransomware victims7employee accounts
The full list is in the PDF reportDownload report
Report contents
Sections and pages of the full report.
Contents
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