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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.
5,447
Disclosures in the tracker, all years
2,033
Of those, indexed in 2026
86
Added in October
20
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 22 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,938 results · Technology disclosures. Clear filters
Critical8 Feb 2012
KPN Telecom (Netherlands)
Technology · 2,000,000 records
2M customer records accessed through compromised systems, largest Dutch telco breach
8 Feb 2012
Critical26 Jul 2011
SK Communications (Nate/Cyworld)
Technology · 35,000,000 records
35M user records stolen from Korean social network, one of Asia's largest breaches
26 Jul 2011
This is the oldest page. The index starts on 26 Jul 2011.
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