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.
5,366
Disclosures in the tracker, all years
2,082
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.
- Canada29 Oct 2026McCarthy Tétrault (with Davies also reporting a breach)The source does not say how they got in.The Globe and Mail
- Canada23 Oct 2026Crime Stoppers programs in OntarioHow they got in: a supplier or vendor that was compromised first.Global News
- Canada22 Oct 2026Toronto Crime StoppersHow they got in: a supplier or vendor that was compromised first.Global News
- Canada21 Oct 2026Canadian Crime Stoppers AssociationHow they got in: a supplier or vendor that was compromised first.CBC News
High1 Jun 2024
Data breach affecting 414,515 members, personal information exposed
Education · Records not stated
Data breach affecting 414,515 members, personal information exposed
1 Jun 2024
Critical1 Jun 2024
Snowflake (165 customers affected)
Technology · 165,000,000 records
165 organizations' data breached through Snowflake platform via identity-based attacks; UNC5537 cybercrime operation extracted data from multiple customers
1 Jun 2024
High1 Jun 2024
Partnered Health Clinics (Australia)
Healthcare · Records not stated
Cyber-attack exposed Medicare numbers, treatment details, and pathology results
1 Jun 2024
Critical1 Jun 2024
Department for Education
Education · Records not stated
Cyberattack exposed approximately 607,000 education records
1 Jun 2024
Critical1 Jun 2024
Snowflake (165 customer organizations)
Technology · 165,000,000 records
Identity-based attacks targeting Snowflake customers; 165 organizations breached including Rockstar Games, AT&T, Advanced Auto Parts, LendingTree; extortion totaling $2.7M
1 Jun 2024
High1 Jun 2024
Data breach notification sent to 414,515 members
Education · Records not stated
Data breach notification sent to 414,515 members
1 Jun 2024
High1 Jun 2024
Data breach notifying 414,515 members of exposed data
Education · Records not stated
Data breach notifying 414,515 members of exposed data
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Data breach notifying 414,515 members of exposed personal information
1 Jun 2024
High1 Jun 2024
City of Cleveland
Government · Records not stated
Ransomware attack forced City Hall closure; unnamed systems taken offline
1 Jun 2024
High1 Jun 2024
Dubai Municipality
Government · Records not stated
Breach claimed by Daixin Team threat actor
1 Jun 2024
High1 Jun 2024
Breach
Education · Records not stated
Breach notified 414,515 members of data exposure
1 Jun 2024
Critical1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Data breach exposing 414,515 member records with personal information
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · 165,000,000 records
The disclosure as indexed does not name the organisation.
Vendor data compromised in Snowflake cyberattack affecting school district
1 Jun 2024
Critical1 Jun 2024
Fortinet
Technology · Records not stated
FortiBleed campaign exposed verified administrator credentials and VPN data for 73,000+ devices
1 Jun 2024
Critical1 Jun 2024
PEAR ransomware attack
Healthcare · 1,260,000 records
PEAR ransomware attack exposed 1.26 million patient records at healthcare billing and practice management company
1 Jun 2024
High1 Jun 2024
Organisation not named
Education · 165,000,000 records
The disclosure as indexed does not name the organisation.
Vendor data compromised in Snowflake cyberattack against cloud storage provider
1 Jun 2024
Critical1 Jun 2024
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
414,515 members notified of data breach affecting education sector
1 Jun 2024
Critical1 Jun 2024
Snowflake (Multiple Customers)
Technology · 165,000,000 records
165+ customers breached through identity-based attacks; $2.7M extorted
1 Jun 2024
High1 Jun 2024
Data breach notifying 414,515 members of exposure
Education · Records not stated
Data breach notifying 414,515 members of exposure
1 Jun 2024
High1 Jun 2024
Data breach affecting 414,515 member records including PII
Education · Records not stated
Data breach affecting 414,515 member records including PII
1 Jun 2024
Critical1 Jun 2024
LendingTree
Finance · Records not stated
Customer financial data compromised via Snowflake platform attack
1 Jun 2024
High1 Jun 2024
Advanced Auto Parts
Retail · Records not stated
Customer data exposed through Snowflake platform compromise
1 Jun 2024
High1 Jun 2024
414,515 members notified of data breach exposure
Education · Records not stated
414,515 members notified of data breach exposure
1 Jun 2024
Critical1 Jun 2024
Snowflake (165 customers)
Technology · 165,000,000 records
165 organizations breached via compromised Snowflake credentials; UNC5537 extorted $2.7M
1 Jun 2024
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