Please find below a series of tables by year and month for the number of Data-Leaking Ransomware Victims, both globally and in the UK, claimed by Ransomware Operators, all of which are published in our PRiSM application, from 2019 to 2025 so far:-
2025 
MONTH  | 
  
GLOBAL 
RANSOMWARE VICTIMS  | 
  
UK 
RANSOMWARE VICTIMS  | 
 
JANUARY 
 | 
  606 | 26 | 
FEBRUARY 
 | 
  747 | 21 | 
MARCH 
 | 
  965 | 31 | 
APRIL 
 | 
  528 | 17 | 
MAY 
 | 
  466 | 16 | 
JUNE 
 | 
  479 | 23 | 
JULY 
 | 
  535 | 22 | 
AUGUST 
 | 
  533 | 28 | 
SEPTEMBER 
 | 
  582 | 15 | 
OCTOBER 
 | 
  807 | 13 | 
NOVEMBER 
 | 
  ||
DECEMBER 
 | 
  ||
TOTALS 
 | 
  6248  | 
  212 
 | 
 
2024 
MONTH  | 
  
GLOBAL 
RANSOMWARE VICTIMS  | 
  
UK 
RANSOMWARE VICTIMS  | 
 
JANUARY 
 | 
  298 | 14 | 
FEBRUARY 
 | 
  410 | 25 | 
MARCH 
 | 
  397 | 25 | 
APRIL 
 | 
  403 | 21 | 
MAY 
 | 
  570 | 35 | 
JUNE 
 | 
  323 | 25 | 
JULY 
 | 
  416 | 14 | 
AUGUST 
 | 
  449 | 28 | 
SEPTEMBER 
 | 
  396 | 17 | 
OCTOBER 
 | 
  553 | 25 | 
NOVEMBER 
 | 
  640 | 21 | 
DECEMBER 
 | 
  627 | 13 | 
TOTALS 
 | 
  5482  | 
  263 
 | 
 
2023 
MONTH  | 
  
GLOBAL 
RANSOMWARE VICTIMS  | 
  
UK 
RANSOMWARE VICTIMS  | 
 
JANUARY 
 | 
  175 | 18 | 
FEBRUARY 
 | 
  265 | 16 | 
MARCH 
 | 
  455 | 29 | 
APRIL 
 | 
  379 | 13 | 
MAY 
 | 
  574 | 30 | 
JUNE 
 | 
  494 | 26 | 
JULY 
 | 
  495 | 38 | 
AUGUST 
 | 
  403 | 20 | 
SEPTEMBER 
 | 
  467 | 27 | 
OCTOBER 
 | 
  356 | 32 | 
NOVEMBER 
 | 
  516 | 31 | 
DECEMBER 
 | 
  375 | 23 | 
TOTALS 
 | 
  4954  | 
  303 
 | 
 
2022 
MONTH  | 
  
GLOBAL 
RANSOMWARE VICTIMS  | 
  
UK 
RANSOMWARE VICTIMS  | 
 
JANUARY 
 | 
  186 | 13 | 
FEBRUARY 
 | 
  223 | 12 | 
MARCH 
 | 
  329 | 23 | 
APRIL 
 | 
  298 | 11 | 
MAY 
 | 
  221 | 11 | 
JUNE 
 | 
  187 | 10 | 
JULY 
 | 
  260 | 12 | 
AUGUST 
 | 
  197 | 11 | 
SEPTEMBER 
 | 
  246 | 8 | 
OCTOBER 
 | 
  244 | 16 | 
NOVEMBER 
 | 
  257 | 11 | 
DECEMBER 
 | 
  248 | 14 | 
TOTALS 
 | 
  2896  | 
  152 
 | 
 
2021 
MONTH  | 
  
GLOBAL 
RANSOMWARE VICTIMS  | 
  
UK 
RANSOMWARE VICTIMS  | 
 
JANUARY 
 | 
  165 | 8 | 
FEBRUARY 
 | 
  163 | 5 | 
MARCH 
 | 
  180 | 10 | 
APRIL 
 | 
  258 | 19 | 
MAY 
 | 
  315 | 16 | 
JUNE 
 | 
  231 | 7 | 
JULY 
 | 
  192 | 15 | 
AUGUST 
 | 
  250 | 7 | 
SEPTEMBER 
 | 
  270 | 12 | 
OCTOBER 
 | 
  341 | 15 | 
NOVEMBER 
 | 
  403 | 26 | 
DECEMBER 
 | 
  241 | 10 | 
TOTALS 
 | 
  3009  | 
  150 
 | 
 
2020 
MONTH  | 
  
GLOBAL 
RANSOMWARE VICTIMS  | 
  
UK 
RANSOMWARE VICTIMS  | 
 
JANUARY 
 | 
  7 | - | 
FEBRUARY 
 | 
  16 | - | 
MARCH 
 | 
  17 | 1 | 
APRIL 
 | 
  31 | 1 | 
MAY 
 | 
  51 | 3 | 
JUNE 
 | 
  97 | 7 | 
JULY 
 | 
  36 | 1 | 
AUGUST 
 | 
  201 | 9 | 
SEPTEMBER 
 | 
  270 | 15 | 
OCTOBER 
 | 
  167 | 7 | 
NOVEMBER 
 | 
  231 | 11 | 
DECEMBER 
 | 
  208 | 10 | 
TOTALS 
 | 
  1332  | 
  65 
 | 
 
2019 
MONTH  | 
  
GLOBAL 
RANSOMWARE VICTIMS  | 
  
UK 
RANSOMWARE VICTIMS  | 
 
JANUARY 
 | 
  - | - | 
FEBRUARY 
 | 
  - | - | 
MARCH 
 | 
  - | - | 
APRIL 
 | 
  - | - | 
MAY 
 | 
  5 | - | 
JUNE 
 | 
  - | - | 
JULY 
 | 
  - | - | 
AUGUST 
 | 
  - | - | 
SEPTEMBER 
 | 
  - | - | 
OCTOBER 
 | 
  - | - | 
NOVEMBER 
 | 
  - | - | 
DECEMBER 
 | 
  6 | - | 
TOTALS 
 | 
  11  | 
  0 
 | 
 
Data Source: Data Breaches Digest.