Weekly briefing No. 42 published 30 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.

5,369
Disclosures in the tracker, all years
2,083
Of those, indexed in 2026
146
Added in October
23
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.

Worldwide · How they got in

Incidents worldwide, by country.

78 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. Canada29 Oct 2026McCarthy Tétrault (with Davies also reporting a breach)The source does not say how they got in.The Globe and Mail
  2. Canada23 Oct 2026Crime Stoppers programs in OntarioHow they got in: a supplier or vendor that was compromised first.Global News
  3. Canada22 Oct 2026Toronto Crime StoppersHow they got in: a supplier or vendor that was compromised first.Global News
  4. Canada21 Oct 2026Canadian Crime Stoppers AssociationHow they got in: a supplier or vendor that was compromised first.CBC News
High1 Jun 2024
Kirkland & Ellis
Legal · Records not stated
Law firm data exposed through MOVEit vulnerability; subject of class action lawsuit
1 Jun 2024
High1 Jun 2024
SingTel
Technology · Records not stated
China state-sponsored hacking group breached Singapore Telecommunications in June 2024 as part of global campaign
1 Jun 2024
High1 Jun 2024
Kadokawa Corporation and Niconico
Technology · Records not stated
June 2024 ransomware breach by Russian-linked hacker group affecting Japanese media subsidiary
1 Jun 2024
Medium1 Jun 2024
Cleveland Clinic
Sector not stated · 23,000 records
23K patient records exposed in vendor breach
1 Jun 2024
High1 Jun 2024
Group Health Cooperative
Healthcare · 530,000 records
530K patient records exposed
1 Jun 2024
Critical29 May 2024
Evolve Bank & Trust
Finance · 7,600,000 records
7.6M customer records exposed in LockBit ransomware
29 May 2024
Critical28 May 2024
Ticketmaster (data sale)
Technology · 560,000,000 records
560M records put up for sale on dark web for $500K
28 May 2024
High25 May 2024
pcTattletale
Technology · 138,751 records
138,751 records exposed, Device information, Email addresses, IP addresses, Names and 5 more
25 May 2024
Critical23 May 2024
Dota2
Retail · 1,907,205 records
1,907,205 records exposed, Email addresses, IP addresses, Passwords, Usernames
23 May 2024
Critical23 May 2024
Advance Auto Parts (Snowflake)
Technology · 2,300,000 records
2.3M customer records exposed
23 May 2024
Medium21 May 2024
Dameron Hospital
Healthcare · 64,000 records
64K patient records exposed in data breach
21 May 2024
High20 May 2024
200K patient records exposed via Snowflake breach
Technology · 165,000,000 records
200K patient records exposed via Snowflake breach
20 May 2024
Critical20 May 2024
190M customer records exposed
Technology · 190,000,000 records
190M customer records exposed
20 May 2024
High20 May 2024
200K patient records exposed via Snowflake breach
Technology · 165,000,000 records
200K patient records exposed via Snowflake breach
20 May 2024
Critical20 May 2024
190M customer records exposed
Technology · 165,000,000 records
190M customer records exposed
20 May 2024
High20 May 2024
200K patient records exposed via Snowflake breach
Technology · 165,000,000 records
200K patient records exposed via Snowflake breach
20 May 2024
Critical20 May 2024
190M customer records exposed
Technology · 165,000,000 records
190M customer records exposed
20 May 2024
High20 May 2024
200K patient records exposed via Snowflake breach
Technology · 200,000 records
200K patient records exposed via Snowflake breach
20 May 2024
Critical20 May 2024
190M customer records exposed
Technology · 165,000,000 records
190M customer records exposed
20 May 2024
High20 May 2024
200K patient records exposed via Snowflake breach
Technology · 165,000,000 records
200K patient records exposed via Snowflake breach
20 May 2024
Critical20 May 2024
190M customer records exposed
Technology · 165,000,000 records
190M customer records exposed
20 May 2024
High20 May 2024
200K patient records exposed via Snowflake breach
Technology · 165,000,000 records
200K patient records exposed via Snowflake breach
20 May 2024
Critical20 May 2024
190M customer records exposed
Technology · 190,000,000 records
190M customer records exposed
20 May 2024
High20 May 2024
200K patient records exposed via Snowflake breach
Technology · 165,000,000 records
200K patient records exposed via Snowflake breach
20 May 2024
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