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.

5,365
Disclosures in the tracker, all years
2,081
Of those, indexed in 2026
144
Added in October
21
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 30 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High8 Nov 2021
MediaMarkt (Netherlands/Germany)
Retail · Records not stated
Hive ransomware disrupted 3,100 European electronics stores, $50M demanded
8 Nov 2021
Critical8 Nov 2021
DNA Diagnostics Center
Healthcare · 2,100,000 records
2.1M customer records and paternity test data exposed
8 Nov 2021
High5 Nov 2021
City of Westmount (QC)
Government · Records not stated
Municipal systems locked by ransomware
5 Nov 2021
Critical4 Nov 2021
CyberServe
Healthcare · 1,107,034 records
1,107,034 records exposed, Dates of birth, Drinking habits, Email addresses, Family structure and 15 more
4 Nov 2021
Medium4 Nov 2021
NorthStar HealthCare Group
Healthcare · 25,000 records
25K patient records exposed
4 Nov 2021
Critical3 Nov 2021
Robinhood
Finance · 7,000,000 records
7M customer accounts compromised in social engineering attack
3 Nov 2021
Medium2 Nov 2021
iFood (Brazil)
Technology · Records not stated
Employee tampered with 6M restaurant listings, names changed to political messages
2 Nov 2021
High2 Nov 2021
Tamil Nadu Police (India)
Government · Records not stated
60,000 police records including FIRs and accused details leaked online
2 Nov 2021
High1 Nov 2021
City of Quincy MA
Government · Records not stated
Ransomware disrupted city services
1 Nov 2021
Critical30 Oct 2021
Newfoundland Health (Eastern Health)
Healthcare · Records not stated
Cyberattack disrupted healthcare across entire province for weeks
30 Oct 2021
Critical30 Oct 2021
Government of Newfoundland Health
Healthcare · Records not stated
Cyberattack disrupted healthcare across entire province, years of patient data stolen
30 Oct 2021
Critical29 Oct 2021
CyberServe (Iran)
Technology · 1,000,000 records
1M user records exposed in hacktivist attack
29 Oct 2021
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