Weekly breach brief
Data breaches in the week of 23–29 March 2026
61 data breaches on the tracker, 61 confirmed by the organisation or a regulator.
- Breaches
- 61
- Notices in CA and WA
- 18
- Ransomware claims
- 134
- Largest
- 339,778
The largest
- BreachForums Version 5 339,778 accounts
- Sound Radix 292,993 accounts
- RuneScape Boards 222,762 accounts
- Quatrro Business Support Services Inc 188,218 people United States
- Hightower Holding, LLC 131,483 people United States
- Scuf Gaming 128,683 accounts
Every breach this week, by country
United States 57
- Conduent Business Services, LLC (revised submission) 24 March 2026 · 12,784,367 Texas residents
- Eurail B.V. 27 March 2026 · 308,777 Oregon residents
- Quatrro Business Support Services Inc 23 March 2026 · 188,218 people
- Hightower Holding, LLC 23 March 2026 · 131,483 people
- TriMed Inc 27 March 2026 · 81,203 people
- Empowerment Schools - Healthcare Ltd and Texas Medical Careers, Limited 27 March 2026 · 68,927 Texas residents
- Impac Mortgage Holdings, Inc. 27 March 2026 · 61,066 people
- Woodfords Family Services 27 March 2026 · 41,984 people
- Master Mobilelink & Mobily LLC dba Mobilelink 27 March 2026 · 40,174 people
- Coalesce, LLC dba Benefitelect 23 March 2026 · 29,023 people
- Sterling Seacrest Pritchard 25 March 2026 · 8,778 people
- Advantage Gold 27 March 2026 · 7,960 people
- Herbert W. Auger PA 27 March 2026 · 5,102 people
- City of Washington Court House 25 March 2026 · 4,982 people
- Chemical Services Group, Inc. 24 March 2026 · 4,520 people
- Oklahoma Tax Commission 27 March 2026 · 4,177 Texas residents
- Ampex Data Systems Corp 26 March 2026 · 3,723 people
- TSU One Holdings, LLC 25 March 2026 · 2,886 Texas residents
- Betterment LLC 27 March 2026 · 2,750 Washington residents
- Summit Insurance Services Inc 23 March 2026 · 2,290 people
- Dubroff, Easley, & Lovell LLP 25 March 2026 · 2,277 people
- Five States Energy Company, L.L.C. 26 March 2026 · 2,251 people
- Mutual of America Life Insurance Co 23 March 2026 · 1,681 people
- MXB Battery Operations LP 26 March 2026 · 1,545 people
- Cetera Financial Group 25 March 2026 · 1,398 Texas residents
- Navia Benefits Solutions Inc 23 March 2026 · 1,100 Washington residents
- Evolve Mortgage Services on behalf of financial institutions 27 March 2026 · 1,079 Texas residents
- Chapel Hill Presbyterian Church 23 March 2026 · 879 Washington residents
- Walkowicz, Boczkiewicz, & Co SC 24 March 2026 · 836 people
- Deschutes Public Library 25 March 2026 · 830 Oregon residents
- Bonaccord Capital Partners 23 March 2026 · 764 people
- Pan-American Life Insurance Company 23 March 2026 · 564 Texas residents
- Ailco Equipment Finance Group Inc 26 March 2026 · 538 people
- Tricon Energy Inc. 25 March 2026 · 449 Texas residents
- Kaaj Technologies Inc 26 March 2026 · 418 people
- Metal Pros LLC 27 March 2026 · 403 people
- Publisher Services Inc 25 March 2026 · 344 people
- Bartram Trail Surveying Inc 25 March 2026 · 288 people
- Accu-Tube LLC 27 March 2026 · 264 people
- Mark Leyden & Associates LLC 24 March 2026 · 188 people
- Dana Lee CPA LLC 27 March 2026 · 150 Texas residents
- Instrumentation and Control Systems Inc dba ICS Electrical Services 23 March 2026 · 104 people
- McNeelyLaw LLP and Subro Solution Inc 24 March 2026 · 100 people
- mHub 23 March 2026 · 87 people
- MP Acquisition LLC dba Mopec 23 March 2026 · 45 people
- Logan Community Services 27 March 2026 · 6 people
- Colaberry Inc 24 March 2026 · 6 Indiana residents
- Skibiel Law 26 March 2026 · 2 Indiana residents
- Driveline Baseball Enterprises LLC 25 March 2026 · 2 Indiana residents
- Heart City Health Center 26 March 2026 · 1 people
- Austin Cosmetic Surgery, PLLC 23 March 2026 · 1 Texas residents
- CareCloud, Inc. 27 March 2026
- Alliance Industrial Refrigeration Services, Inc. 26 March 2026
- Nephrology Associates Medical Group 26 March 2026
- California Online Public Schools 26 March 2026
- Heritage Financial Corp /Wa/ 23 March 2026
- Expert MRI 23 March 2026
Country being checked 4
- BreachForums Version 5 27 March 2026 · 339,778 accounts
- Sound Radix 26 March 2026 · 292,993 accounts
- RuneScape Boards 23 March 2026 · 222,762 accounts
- Scuf Gaming 26 March 2026 · 128,683 accounts
Ransomware claims
Gangs named 134 organisations on their leak sites this week, against 168 the week before. A claim is the gang’s word, not a confirmed breach.
- Qilin 24 claims
- Akira 17 claims
- NightSpire 15 claims
- INC Ransom 11 claims
- DragonForce 9 claims
- Handala 9 claims
Every week
- 26 Oct – 1 Nov 2026 67 data breaches so far
- 19–25 October 2026 80 data breaches
- 12–18 October 2026 54 data breaches
- 5–11 October 2026 48 data breaches
- 28 Sept – 4 Oct 2026 68 data breaches
- 21–27 September 2026 67 data breaches
- 14–20 September 2026 71 data breaches
- 7–13 September 2026 46 data breaches
- 31 Aug – 6 Sept 2026 61 data breaches
- 24–30 August 2026 59 data breaches
- 17–23 August 2026 56 data breaches
- 10–16 August 2026 67 data breaches
- 3–9 August 2026 69 data breaches
- 27 Jul – 2 Aug 2026 60 data breaches
- 20–26 July 2026 39 data breaches
- 13–19 July 2026 50 data breaches
- 6–12 July 2026 49 data breaches
- 29 Jun – 5 Jul 2026 49 data breaches
- 22–28 June 2026 56 data breaches
- 15–21 June 2026 40 data breaches
- 8–14 June 2026 49 data breaches
- 1–7 June 2026 57 data breaches
- 25–31 May 2026 54 data breaches
- 18–24 May 2026 50 data breaches
- 11–17 May 2026 61 data breaches
- 4–10 May 2026 53 data breaches
- 27 Apr – 3 May 2026 48 data breaches
- 20–26 April 2026 41 data breaches
- 13–19 April 2026 51 data breaches
- 6–12 April 2026 38 data breaches
- 30 Mar – 5 Apr 2026 44 data breaches
- 23–29 March 2026 61 data breaches
- 16–22 March 2026 46 data breaches
- 9–15 March 2026 51 data breaches
- 2–8 March 2026 41 data breaches
- 23 Feb – 1 Mar 2026 50 data breaches
- 16–22 February 2026 45 data breaches
- 9–15 February 2026 50 data breaches
- 2–8 February 2026 46 data breaches
- 26 Jan – 1 Feb 2026 48 data breaches
- 19–25 January 2026 24 data breaches
- 12–18 January 2026 47 data breaches
- 5–11 January 2026 48 data breaches
- 29 Dec – 4 Jan 2026 30 data breaches
- 22–28 December 2025 24 data breaches
- 15–21 December 2025 26 data breaches
- 8–14 December 2025 28 data breaches
- 1–7 December 2025 20 data breaches
- 24–30 November 2025 12 data breaches
- 17–23 November 2025 32 data breaches
- 10–16 November 2025 24 data breaches
- 3–9 November 2025 24 data breaches
- 27 Oct – 2 Nov 2025 14 data breaches
- 20–26 October 2025 11 data breaches
- 13–19 October 2025 13 data breaches
- 6–12 October 2025 13 data breaches
- 29 Sept – 5 Oct 2025 16 data breaches
- 22–28 September 2025 14 data breaches
- 15–21 September 2025 18 data breaches
- 8–14 September 2025 18 data breaches
- 1–7 September 2025 9 data breaches
- 25–31 August 2025 18 data breaches
- 18–24 August 2025 14 data breaches
- 11–17 August 2025 11 data breaches
- 4–10 August 2025 11 data breaches
- 28 Jul – 3 Aug 2025 17 data breaches
- 21–27 July 2025 16 data breaches
- 14–20 July 2025 24 data breaches
- 7–13 July 2025 15 data breaches
- 30 Jun – 6 Jul 2025 14 data breaches
- 23–29 June 2025 21 data breaches
- 16–22 June 2025 9 data breaches
- 9–15 June 2025 15 data breaches
- 2–8 June 2025 15 data breaches
- 26 May – 1 Jun 2025 5 data breaches
- 19–25 May 2025 19 data breaches
- 12–18 May 2025 15 data breaches
- 5–11 May 2025 20 data breaches
- 28 Apr – 4 May 2025 15 data breaches
- 21–27 April 2025 15 data breaches
- 14–20 April 2025 10 data breaches
- 7–13 April 2025 29 data breaches
- 31 Mar – 6 Apr 2025 19 data breaches
- 24–30 March 2025 17 data breaches
- 17–23 March 2025 19 data breaches
- 10–16 March 2025 25 data breaches
- 3–9 March 2025 22 data breaches
- 24 Feb – 2 Mar 2025 61 data breaches
- 17–23 February 2025 11 data breaches
- 10–16 February 2025 14 data breaches
- 3–9 February 2025 15 data breaches
- 27 Jan – 2 Feb 2025 20 data breaches
- 20–26 January 2025 11 data breaches
- 13–19 January 2025 16 data breaches
- 6–12 January 2025 17 data breaches
- 30 Dec – 5 Jan 2025 7 data breaches
- 23–29 December 2024 9 data breaches
- 16–22 December 2024 23 data breaches
- 9–15 December 2024 18 data breaches
- 2–8 December 2024 12 data breaches
- 25 Nov – 1 Dec 2024 7 data breaches
- 18–24 November 2024 14 data breaches
- 11–17 November 2024 18 data breaches
- 4–10 November 2024 16 data breaches
- 28 Oct – 3 Nov 2024 13 data breaches
- 21–27 October 2024 14 data breaches
- 14–20 October 2024 13 data breaches
- 7–13 October 2024 22 data breaches
- 30 Sept – 6 Oct 2024 16 data breaches
- 23–29 September 2024 11 data breaches
- 16–22 September 2024 15 data breaches
- 9–15 September 2024 12 data breaches
- 2–8 September 2024 15 data breaches
- 26 Aug – 1 Sept 2024 22 data breaches
- 19–25 August 2024 16 data breaches
- 12–18 August 2024 14 data breaches
- 5–11 August 2024 17 data breaches
- 29 Jul – 4 Aug 2024 15 data breaches
- 22–28 July 2024 15 data breaches
- 15–21 July 2024 18 data breaches
- 8–14 July 2024 13 data breaches
- 1–7 July 2024 10 data breaches
- 24–30 June 2024 17 data breaches
- 17–23 June 2024 14 data breaches
- 10–16 June 2024 16 data breaches
- 3–9 June 2024 19 data breaches
- 27 May – 2 Jun 2024 20 data breaches
- 20–26 May 2024 26 data breaches
- 13–19 May 2024 12 data breaches
- 6–12 May 2024 17 data breaches
- 29 Apr – 5 May 2024 20 data breaches
- 22–28 April 2024 14 data breaches
- 15–21 April 2024 19 data breaches
- 8–14 April 2024 14 data breaches
- 1–7 April 2024 19 data breaches
- 25–31 March 2024 24 data breaches
- 18–24 March 2024 31 data breaches
- 11–17 March 2024 14 data breaches
- 4–10 March 2024 14 data breaches
- 26 Feb – 3 Mar 2024 28 data breaches
- 19–25 February 2024 15 data breaches
- 12–18 February 2024 12 data breaches
- 5–11 February 2024 17 data breaches
- 29 Jan – 4 Feb 2024 17 data breaches
- 22–28 January 2024 14 data breaches
- 15–21 January 2024 11 data breaches
- 8–14 January 2024 21 data breaches
- 1–7 January 2024 13 data breaches
- 25–31 December 2023 12 data breaches
- 18–24 December 2023 32 data breaches
- 11–17 December 2023 22 data breaches
- 4–10 December 2023 25 data breaches
- 27 Nov – 3 Dec 2023 17 data breaches
- 20–26 November 2023 19 data breaches
- 13–19 November 2023 14 data breaches
- 6–12 November 2023 13 data breaches
- 30 Oct – 5 Nov 2023 17 data breaches
- 23–29 October 2023 13 data breaches
- 16–22 October 2023 15 data breaches
- 9–15 October 2023 15 data breaches
- 2–8 October 2023 19 data breaches
- 25 Sept – 1 Oct 2023 9 data breaches
- 18–24 September 2023 21 data breaches
- 11–17 September 2023 14 data breaches
- 4–10 September 2023 14 data breaches
- 28 Aug – 3 Sept 2023 27 data breaches
- 21–27 August 2023 23 data breaches
- 14–20 August 2023 17 data breaches
- 7–13 August 2023 24 data breaches
- 31 Jul – 6 Aug 2023 20 data breaches
- 24–30 July 2023 38 data breaches
- 17–23 July 2023 25 data breaches
- 10–16 July 2023 22 data breaches
- 3–9 July 2023 10 data breaches
- 26 Jun – 2 Jul 2023 23 data breaches
- 19–25 June 2023 11 data breaches
- 12–18 June 2023 16 data breaches
- 5–11 June 2023 11 data breaches
- 29 May – 4 Jun 2023 9 data breaches
- 22–28 May 2023 18 data breaches
- 15–21 May 2023 15 data breaches
- 8–14 May 2023 14 data breaches
- 1–7 May 2023 9 data breaches
- 24–30 April 2023 17 data breaches
- 17–23 April 2023 11 data breaches
- 10–16 April 2023 17 data breaches
- 3–9 April 2023 12 data breaches
- 27 Mar – 2 Apr 2023 18 data breaches
- 20–26 March 2023 13 data breaches
- 13–19 March 2023 14 data breaches
- 6–12 March 2023 17 data breaches
- 27 Feb – 5 Mar 2023 21 data breaches
- 20–26 February 2023 7 data breaches
- 13–19 February 2023 15 data breaches
- 6–12 February 2023 9 data breaches
- 30 Jan – 5 Feb 2023 15 data breaches
- 23–29 January 2023 12 data breaches
- 16–22 January 2023 14 data breaches
- 9–15 January 2023 10 data breaches
- 2–8 January 2023 8 data breaches
- 26 Dec – 1 Jan 2023 2 data breaches
Follow the brief: one entry a week (Atom). The 2026 report has the year so far.
From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.