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.

5,301
Disclosures in the tracker, all years
2,016
Of those, indexed in 2026
67
Added in October
19
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. South Korea10 Oct 2026South Korean banksHow they got in: automated AI tools that work through many organizations at once.BleepingComputer
  2. South Korea8 Oct 2026Uranium FinanceHow they got in: a known flaw in software the victim ran.BleepingComputer
  3. South Korea7 Oct 2026Exposed AI server operatorsHow they got in: a system left reachable from the internet.BleepingComputer
  4. South Korea7 Oct 2026SpotifyThe source does not say how they got in.BleepingComputer
  5. South Korea7 Oct 2026GoogleHow they got in: a supplier or vendor that was compromised first.BleepingComputer
  6. South Korea7 Oct 2026Fortinet FortiGate firewall ownersHow they got in: stolen or reused passwords.BleepingComputer
  7. South Korea7 Oct 2026MonsterCloud customersThe source does not say how they got in.BleepingComputer
Medium19 Aug 2026
Inside Operation CameraSwarm
Sector not stated · Records not stated
An exposed operator directory reveals how one actor compromised 14,000+ Dahua cameras across Ukraine and Russia, no password needed for most. A researcher discovered an exposed directory containing the tools of an…
19 Aug 2026
Critical19 Aug 2026
Organisation not named
Healthcare · 3,700,000 records
The disclosure as indexed does not name the organisation.
Healthcare software firm CareCloud filed documents with the Department of Health and Human Services confirming that 3,756,469 people had information leaked after a hacker spent eight hours in one of the company’s…
19 Aug 2026
Critical19 Aug 2026
U.S. healthcare IT company CareCloud
Sector not stated · 3,700,000 records
U.S. healthcare IT company CareCloud disclosed that the data breach incident it suffered earlier this year has impacted more than 3.7 million individuals.
19 Aug 2026
Critical19 Aug 2026
Sakura Internet hack
Technology · 1,360,000 records
Japanese cloud and data center service provider Sakura Internet disclosed that hackers accessed its sales management system, where customer contract and membership information is stored.
19 Aug 2026
Medium19 Aug 2026
Cybersecurity researchers at Hunt.io have
Sector not stated · 2,616 records
Cybersecurity researchers at Hunt.io have disclosed details of a campaign that they say compromised more than 14,530 Dahua devices between June 17 and July 22, 2026, using credential attacks, two authentication-bypass…
19 Aug 2026
Critical19 Aug 2026
Organisation not named
Government · 1,200,000 records
The disclosure as indexed does not name the organisation.
Latvia’s road traffic agency confirmed that hackers stole data connected to about two-thirds of the country’s population in a major cyberattack that has prompted calls for senior officials to resign.
19 Aug 2026
Critical19 Aug 2026
Justin Timothy
Sector not stated · Records not stated
Justin Timothy reports: The GuidePoint Research and Intelligence Team (GRIT) has responded to several recent ransomware incidents in which victims received an unexpected email from an ostensible third-party entity…
19 Aug 2026
Critical19 Aug 2026
Waqas
Sector not stated · Records not stated
Waqas reports: A server mistake by cybercriminals has exposed the inner workings of a global malware operation that used nearly 2,000 hacked WordPress websites to infect computers, steal files and deploy ransomware.…
19 Aug 2026
High19 Aug 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
Cybersecurity researchers have flagged a global cybercrime operation that abuses thousands of hacked WordPress websites as infrastructure to disseminate malware, commandeer infected hosts, store stolen documents…
19 Aug 2026
Critical19 Aug 2026
Organisation not named
Sector not stated · 3,700,000 records
The disclosure as indexed does not name the organisation.
The data breach was initially believed to affect roughly 350,000 people, but the HHS breach tracker shows a far bigger impact. The post CareCloud Data Breach Impact Grows to 3.7 Million Individuals appeared first on…
19 Aug 2026
High19 Aug 2026
IBM-managed test system (Singapore)
Technology · 70,000 records
Exposed personal information of approximately 70,000 individuals due to supply chain vulnerability
19 Aug 2026
High19 Aug 2026
FRANCE TRAVAIL
Government · Records not stated
Information system hacked; resulted in €5 million fine
19 Aug 2026
High19 Aug 2026
TransUnion
Finance · 37,000 records
Data breach exposed credit and personal data of 37,000 people in 2019
19 Aug 2026
Critical19 Aug 2026
Snowflake
Technology · 165,000,000 records
Hacking led to 165 confirmed breaches affecting 100+ million people
19 Aug 2026
Critical19 Aug 2026
EVO Banco
Finance · 1,270,000 records
2024 API vulnerability exposed financial and identity data of 1.27 million records. Bankinter fined €240K.
19 Aug 2026
Critical19 Aug 2026
Gaming Services (Multiple)
Technology · Records not stated
Over 11 million gaming account credentials exposed in 2024 data leaks discovered by Kaspersky
19 Aug 2026
Critical19 Aug 2026
U.S. Government
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including White House-linked credentials
19 Aug 2026
Critical19 Aug 2026
UnitedHealthcare
Healthcare · Records not stated
Millions of patients' health and insurance information exposed in 2024 cyberattack
19 Aug 2026
Critical19 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company suffered data breach affecting 1.2 million individuals
19 Aug 2026
Critical19 Aug 2026
Conduent
Healthcare · 62,200,000 records
Healthcare company breach affecting 62.2 million people, third-largest US health hack
19 Aug 2026
Critical19 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company data breach affecting 1.2 million individuals
19 Aug 2026
High19 Aug 2026
Oz Hair and Beauty
Retail · 1,988,331 records
1,988,331 records exposed, Email addresses, Geographic locations, Names, Phone numbers and 1 more
19 Aug 2026
High19 Aug 2026
Fanlore
Retail · 144,520 records
144,520 records exposed, Email addresses, Names, Passwords, Usernames
19 Aug 2026
Medium18 Aug 2026
Tiffany Wang
Technology · Records not stated
Tiffany Wang reports: A prolific Russian-speaking extortion group known for supply-chain attacks claimed to have stolen data from more than 40 firms including heavyweight corporations such as oil giant Shell and…
18 Aug 2026
Were you affected?