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.
5,397
Disclosures in the tracker, all years
2,112
Of those, indexed in 2026
25
Added in November
32
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 5 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical13 May 2026
Instructure
Sector not stated · Records not stated
Instructure says it reached an agreement with ShinyHunters over the Canvas breach data
13 May 2026
Medium13 May 2026
Canada Life
Retail · 237,810 records
237,810 records exposed, Email addresses, Job titles, Names, Phone numbers and 3 more
13 May 2026
Medium12 May 2026
Cushman & Wakefield
Government · 310,431 records
310,431 records exposed, Email addresses, Job titles, Names, Phone numbers and 2 more
12 May 2026
Medium11 May 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
ShinyHunters gets away with emails and other data on 200,000 Zara customers
11 May 2026
Medium11 May 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
ShinyHunters has escalated its Canvas extortion campaign, defacing hundreds of school login pages and threatening to leak stolen data unless institutions negotiate
11 May 2026
Medium8 May 2026
Zara
Finance · 197,376 records
197,376 records exposed, Email addresses, Geographic locations, Purchases, Support tickets
8 May 2026
Medium7 May 2026
Woflow
Technology · 447,593 records
447,593 records exposed, Email addresses, Names, Phone numbers, Physical addresses
7 May 2026
Critical6 May 2026
Rapid7
Sector not stated · Records not stated
Rapid7 reveals an Iranian false flag operation masquerading as a Chaos ransomware attack
6 May 2026
High6 May 2026
LegionProxy
Technology · 10,144 records
10,144 records exposed, Email addresses, Names, Passwords, Purchases
6 May 2026
Medium5 May 2026
Vimeo
Finance · 119,167 records
119,167 records exposed, Email addresses, Names
5 May 2026
High3 May 2026
Marcus & Millichap
Government · 1,837,078 records
1,837,078 records exposed, Email addresses, Employers, Job titles, Names and 2 more
3 May 2026
High2 May 2026
ZenBusiness
Finance · 5,118,184 records
5,118,184 records exposed, Email addresses, Names, Phone numbers
2 May 2026
High1 May 2026
Canvas (Instructure)
Education · Records not stated
Ransomware attack shut down the education platform used by universities and K-12 schools across the US during finals week, affecting thousands of schools.
1 May 2026
Medium1 May 2026
West Pharmaceutical Services
Sector not stated · Records not stated
Ransomware attack forced the company to take systems offline globally, disrupting operations. No data exposure count reported.
1 May 2026
High1 May 2026
Canvas (Instructure)
Education · Records not stated
Ransomware attack by ShinyHunters group forced Canvas shutdown during finals week, affecting universities including Murray State.
1 May 2026
Medium1 May 2026
West Pharmaceutical Services
Healthcare · Records not stated
Ransomware attack forced systems offline globally, disrupting operations.
1 May 2026
Critical1 May 2026
Canvas (Instructure)
Education · 275,000,000 records
ShinyHunters breached Canvas, affecting schools nationwide and threatening to leak data involving 275 million people. Parent company later struck a deal with hackers to delete the data.
1 May 2026
Critical1 May 2026
Instructure (Canvas)
Education · 275,000,000 records
ShinyHunters stole data from the Canvas learning platform, affecting schools nationwide; threatened leak of data involving 275 million records. Parent company struck a deal to delete the data.
1 May 2026
Critical1 May 2026
Instructure (Canvas)
Education · 275,000,000 records
Canvas platform breach affected schools nationwide; ShinyHunters claimed 275M records. Parent company struck a deal with hackers to delete the stolen data.
1 May 2026
High1 May 2026
Canvas (Education Platform)
Education · Records not stated
Ransomware attack shut down education platform used by thousands of US universities and K-12 schools during finals week
1 May 2026
High1 May 2026
Canvas
Education · Records not stated
Ransomware attack shut down education platform used by US universities and K-12 schools
1 May 2026
Critical1 May 2026
Instructure Canvas
Education · Records not stated
Canvas learning management system breach affected millions of students' personal data
1 May 2026
High1 May 2026
Canvas
Education · Records not stated
Ransomware attack shut down education platform used by thousands of schools during finals week
1 May 2026
High1 May 2026
Atrium Health Navicent
Healthcare · Records not stated
Patient records system breach potentially exposed patient records and personal information
1 May 2026
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