Weekly briefing No. 41 published 4 Oct 2026
Intelligence · Disclosure tracker

Every public disclosure, dated and sourced.

Public breach disclosures from regulators, court filings, company notices and news reporting, each recorded with its date and a link to the original. Updated daily.

5,477
Disclosures in the tracker, all years
2,012
Of those, indexed in 2026
61
Added in October
17
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 19 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

Worldwide · How they got in

Incidents worldwide, by country.

65 incidents from 12 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.

  1. Hong Kong16 Oct 2026AOMEI Backupper usersHow they got in: a supplier or vendor that was compromised first.The Hacker News
High1 Sep 2026
Department
Government · Records not stated
Department investigating data breach affecting driver information
1 Sep 2026
High1 Sep 2026
Spain's data protection authority
Government · Records not stated
Spain's data protection authority suffered data breach executed by autonomous AI agent
1 Sep 2026
High1 Sep 2026
Springfield Public Schools
Education · Records not stated
Cybercriminals breached student and staff data during cyberattack
1 Sep 2026
High1 Sep 2026
CenterPoint Energy
Sector not stated · Records not stated
Data breach exposed customer data; files leaked on dark web after hacker accessed systems
1 Sep 2026
Critical1 Sep 2026
Breach
Healthcare · 727,000 records
Breach exposed 727,000 patient and contact records, resulting in €500,000 CNIL fine
1 Sep 2026
Critical1 Sep 2026
Manchester Airport Group
Sector not stated · 8,700,000 records
Breach hit 8.7 million customers with ~640GB of data extracted, published online Sept 3 2026 by FulcrumSec
1 Sep 2026
High1 Sep 2026
Thomson Reuters
Legal · Records not stated
C-Track platform breach exposed sealed U.S. and Canadian court records and sensitive personal data
1 Sep 2026
Critical1 Sep 2026
Gyazo
Technology · 23,620,000 records
Security breach exposed 23.62 million user records including emails and 490M image metadata
1 Sep 2026
Critical1 Sep 2026
McKesson
Healthcare · 284,000,000 records
ShinyHunters extortion group claimed theft of 284 million records
1 Sep 2026
High1 Sep 2026
Revolut
Finance · Records not stated
Hackers stole hundreds of customers' data; company facing $3M ransom demand
1 Sep 2026
High1 Sep 2026
Data breach investigation
Government · Records not stated
Data breach investigation announced by FLHSMV department
1 Sep 2026
High1 Sep 2026
Canva
Technology · Records not stated
Breach affecting 424 organizations in Turkey exposing personal and corporate data
1 Sep 2026
High1 Sep 2026
Springfield Public Schools
Education · Records not stated
Sophisticated cyberattack stealing student and staff data
1 Sep 2026
Critical1 Sep 2026
CenterPoint Energy
Sector not stated · 7,490,000 records
Data breach exposing 7.49 million customer records
1 Sep 2026
High1 Sep 2026
Revolut
Finance · Records not stated
Customer data breach through fake government requests; hundreds of customers affected
1 Sep 2026
High1 Sep 2026
Luminis
Healthcare · Records not stated
Healthcare cybersecurity incident affecting Anne Arundel County hospital
1 Sep 2026
High1 Sep 2026
Canva
Technology · Records not stated
Personal and corporate data exposed affecting 424 organizations in Turkey
1 Sep 2026
Critical1 Sep 2026
Driver license information potentially accessed in data breach
Government · Records not stated
Driver license information potentially accessed in data breach
1 Sep 2026
High1 Sep 2026
Springfield Public Schools
Education · Records not stated
Student and staff data breached by cybercriminals in cyberattack
1 Sep 2026
Critical1 Sep 2026
Organisation not named
Healthcare · 727,000 records
The disclosure as indexed does not name the organisation.
French hospital breach exposed 727,000 patient and contact records
1 Sep 2026
Critical1 Sep 2026
Manchester Airport Group
Sector not stated · 8,700,000 records
Breach exposed 8.7 million customer records; 640GB data stolen and published by FulcrumSec on September 3, 2026
1 Sep 2026
Critical1 Sep 2026
Thomson Reuters
Legal · Records not stated
C-Track court management platform breach exposed sealed court records and personal data including SSNs affecting US and Canadian courts
1 Sep 2026
High1 Sep 2026
Department
Government · Records not stated
Department investigating data breach involving driver information
1 Sep 2026
High1 Sep 2026
Revolut
Finance · Records not stated
Data breach with $3M ransom demand; attacker threatening to sell stolen data
1 Sep 2026
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