Disclosure tracker › Technology disclosures
Intelligence · Disclosure tracker
Technology disclosures
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.
4,047 results · Technology disclosures. Clear filters
Critical25 Sep 2026
Meta
Technology · Records not stated
2018 data breach; EU privacy regulator fined Meta 251 million euros for personal data exposure
25 Sep 2026
Critical25 Sep 2026
Free Mobile and Free
Technology · Records not stated
2024 data breach exposing customer data; French regulator CNIL fined €42-49 million for security vulnerabilities and GDPR violations
25 Sep 2026
High25 Sep 2026
Miljödata
Technology · 2,200,000 records
2.2 million records exposed including sick leave and school data from HR software vendor
25 Sep 2026
Critical24 Sep 2026
Marquis Software Solutions
Technology · Records not stated
Ransomware attack exposed 788,000 financial records and sensitive banking customer data
24 Sep 2026
Critical24 Sep 2026
AT&T
Technology · 109,000,000 records
Two separate incidents in 2024 exposed data from over 100 million customers
24 Sep 2026
High23 Sep 2026
KT Corporation
Technology · Records not stated
Data breach via illegal base stations affecting customers
23 Sep 2026
High23 Sep 2026
Paylogix
Technology · Records not stated
Employee benefits platform breach with financial data stolen via Akira ransomware
23 Sep 2026
Critical23 Sep 2026
Unlimited Technology Systems
Technology · 3,800,000 records
3.8 million people impacted in data breach
23 Sep 2026
High23 Sep 2026
Optus
Technology · Records not stated
2022 cyber breach involving customer data, privacy regulator sued for breach of privacy laws
23 Sep 2026
Critical23 Sep 2026
SK Telecom
Technology · Records not stated
Massive data leak; ordered to pay 100,000 won ($67) compensation per affected user
23 Sep 2026
High23 Sep 2026
Free Mobile and Free
Technology · Records not stated
Data theft affecting thousands of customers; fined €49 million by CNIL with 2500+ complaints
23 Sep 2026
Critical23 Sep 2026
French Telecom Subsidiaries
Technology · 24,000,000 records
2024 breach of 24 million customers; fined €42M for security vulnerabilities and lack of basic controls
23 Sep 2026
High22 Sep 2026
KT
Technology · Records not stated
Data breach via illegal base stations, fined 54 billion Won
22 Sep 2026
Critical22 Sep 2026
Free Mobile
Technology · Records not stated
Major data theft resulting in €49 million fine from CNIL France
22 Sep 2026
High22 Sep 2026
Dell
Technology · Records not stated
Data breach; sensitive user data exposed
22 Sep 2026
High22 Sep 2026
Paylogix
Technology · Records not stated
Employee benefits platform; hackers stole financial data via Akira ransomware
22 Sep 2026
High22 Sep 2026
Line Yahoo
Technology · Records not stated
Data leak confirmed after ending Naver ties in Japan
22 Sep 2026
Critical22 Sep 2026
AT&T
Technology · 109,000,000 records
Data breach exposed over 100 million customers across two separate incidents in 2024
22 Sep 2026
Critical22 Sep 2026
T-Mobile
Technology · 76,600,000 records
2021 cyberattack exposed data of 76.6 million people including SSNs and driver's license info
22 Sep 2026
Critical21 Sep 2026
Free Mobile
Technology · Records not stated
Major data theft, fined €49 million by French CNIL
21 Sep 2026
High21 Sep 2026
Dell
Technology · Records not stated
Data breach with sensitive user data exposed
21 Sep 2026
Critical21 Sep 2026
Ticketmaster via Snowflake
Technology · 560,000,000 records
Massive 2024 cyberattack campaign affecting at least 100 million people across 165 companies including Ticketmaster
21 Sep 2026
High21 Sep 2026
Cell C
Technology · Records not stated
South African telecom provider confirmed data breach following 2024 cyberattack
21 Sep 2026
Critical21 Sep 2026
AT&T
Technology · 109,000,000 records
Two separate incidents exposed data from over 100 million customers in 2024
21 Sep 2026
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