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.
5,378
Disclosures in the tracker, all years
2,094
Of those, indexed in 2026
14
Added in November
25
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 4 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
High30 Oct 2023
Moneris Solutions (Canada)
Finance · Records not stated
Payment processor hit by Medusa ransomware, Canada's largest POS provider
30 Oct 2023
Critical30 Oct 2023
South Westphalia IT (Germany)
Government · Records not stated
Ransomware crippled IT provider for 72 German municipalities, services offline for months
30 Oct 2023
High29 Oct 2023
MemeChat
Technology · 4,348,570 records
4,348,570 records exposed, Email addresses, Usernames
29 Oct 2023
High29 Oct 2023
Ace Hardware (2023)
Technology · Records not stated
Cyberattack disrupted 1,202 devices across 196 stores
29 Oct 2023
High29 Oct 2023
Ace Hardware
Sector not stated · Records not stated
196 stores affected by cyberattack on IT systems
29 Oct 2023
Medium29 Oct 2023
Tulsa OK water utility
Government · 18,000 records
18K customer records exposed in cyberattack
29 Oct 2023
Critical28 Oct 2023
British Library
Education · Records not stated
Rhysida ransomware destroyed IT systems, 600GB of patron and staff data leaked
28 Oct 2023
Medium27 Oct 2023
Toumei
Technology · 76,682 records
76,682 records exposed, Email addresses, Names, Phone numbers, Physical addresses
27 Oct 2023
High27 Oct 2023
Boeing Australia
Sector not stated · Records not stated
LockBit stole 43GB of data from Boeing's Australian operations, parts data exposed
27 Oct 2023
Critical27 Oct 2023
Boeing (LockBit)
Technology · Records not stated
43GB of data stolen and leaked by LockBit ransomware
27 Oct 2023
Critical27 Oct 2023
27 Oct 2023
High24 Oct 2023
City of Allentown PA
Government · Records not stated
165K resident records exposed in ransomware
24 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
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