HackerFeeds
All monthly reports

Ransomware attacks in October 2025

790 victims · 63 active groups · 7 new groups · 546 in September 2025 · Updated Oct 14, 2026

Key findings

  • HackerFeeds recorded 790 ransomware victims claimed on leak sites in October 2025, up 44.7% from 546 in September 2025.
  • 63 groups posted at least one victim; the three most active groups, qilin (192), akira (70) and sinobi (57), accounted for 40.4% of the total.
  • qilin was the most active group with 192 victims, up from 78 in September 2025.
  • Manufacturing was the most-targeted sector with 132 victims (16.7% of the month's total), ahead of Business Services (107).
  • Organizations in the United States accounted for 386 victims (48.9%), followed by Canada (45) and Germany (28); 39 victims did not disclose a location.
  • 7 groups appeared in HackerFeeds data for the first time this month, including nasirsecurity, vect and kryptos.

Daily activity

Busiest day: Oct 14 (61 victims). Quietest day: Oct 18 (7 victims). Victims were posted on 31 of 31 days.

Most active groups

#GroupVictimsShareSeptember 2025Change
1qilin
192
24.3%78+114
2akira
70
8.9%78−8
3sinobi
57
7.2%9+48
4play
34
4.3%39−5
5incransom
33
4.2%37−4
6dragonforce
20
2.5%9+11
7devman
19
2.4%14+5
8ransomhouse
18
2.3%2+16
9medusa
17
2.2%9+8
10blackshrantac
17
2.2%8+9
11safepay
16
2.0%4+12
12nova
16
2.0%4+12
13lynx
14
1.8%25−11
14everest
14
1.8%7+7
15coinbasecartel
14
1.8%11+3

Targeted sectors

#SectorVictimsShare of month
1Manufacturing132
16.7%
2Business Services107
13.5%
3Technology91
11.5%
4Healthcare71
9.0%
5Consumer Services55
7.0%
6Construction54
6.8%
7Financial Services36
4.6%
8Transportation/Logistics32
4.1%
9Education31
3.9%
10Agriculture and Food Production31
3.9%
11Hospitality and Tourism28
3.5%
12Public Sector26
3.3%

Countries

39 victims (4.9%) did not disclose a location.

Groups seen for the first time

GroupFirst victim
nasirsecurityOct 5, 2025
vectOct 5, 2025
kryptosOct 8, 2025
radiantOct 12, 2025
tridentlockerOct 21, 2025
tenguOct 23, 2025
orionOct 28, 2025

“First time” means the group’s earliest victim in our dataset falls in this month; a group may have operated earlier under another name.

Methodology

Counts are victims publicly claimed on ransomware leak sites, as aggregated from ransomware.live, and are dated by the claim’s publication date (UTC). Claims are made by the criminal groups themselves and are not independently verified; a listing does not confirm that an attack took place or that data was stolen. Shares are calculated against the month’s total of 790 victims, and sector and country fields reflect what was disclosed in each listing. See our methodology for details.