Weekly briefing No. 41 published 4 Oct 2026
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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.

5,259
Disclosures in the tracker, all years
1,973
Of those, indexed in 2026
15
Added in October
13
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 8 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

Critical8 Feb 2012
KPN Telecom (Netherlands)
Technology · 2,000,000 records
2M customer records accessed through compromised systems, largest Dutch telco breach
Our record
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
Our record
26 Jul 2011

This is the oldest page. The index starts on 26 Jul 2011.

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