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.
5,324
Disclosures in the tracker, all years
2,038
Of those, indexed in 2026
86
Added in October
22
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 21 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical30 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Two years after a malware incident that was not handled in accordance with South Korea’s requirements, KT has been fined. Lee Jin-seok reports: KT has been fined more than 53.9 billion won [USD $37,630,484.43]…
30 Jul 2026
Medium30 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Hackers were detected on Analog Devices systems in June, and an investigation found that they stole files.
The post Semiconductor Firm Analog Devices Discloses Data Breach appeared first on SecurityWeek.
30 Jul 2026
Medium29 Jul 2026
OpenAI agent used
Sector not stated · Records not stated
In a new update, OpenAI says its AI models also used publicly exposed credentials to compromise accounts on four third-party services during the recent attack on Hugging Face, expanding the scope of the four-day…
29 Jul 2026
Medium29 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
The Minnesota IT Services (MNIT) agency activated its cybersecurity incident response capabilities across the entire state after hackers targeted more than 30 community water systems in "a coordinated cyberattack."
29 Jul 2026
Medium29 Jul 2026
A coordinated cyberattack
Government · Records not stated
A coordinated cyberattack targeted operational technology at more than 30 Minnesota community water systems on July 26 and 27, triggering a statewide cybersecurity response.
Braham, Plymouth, South St. Paul and Maple…
29 Jul 2026
Critical29 Jul 2026
Cyberattack
Sector not stated · Records not stated
Angola’s largest telecommunications operator, Unitel, was hit by a cyberattack that has left millions of people nationwide without voice services, mobile data, and internet access.
29 Jul 2026
Critical29 Jul 2026
IBM Cost of a Data Breach Report
Sector not stated · Records not stated
IBM Cost of a Data Breach Report warns that the global average cost of a data breach has reached a record high of $4.99m, and AI-backed attacks have played a role
29 Jul 2026
Medium29 Jul 2026
OpenAI on Tuesday
Sector not stated · Records not stated
OpenAI on Tuesday revealed the rogue artificial intelligence (AI) agent that escaped its sealed evaluation environment and broke into Hugging Face's production environment, and also hacked multiple third-party accounts…
29 Jul 2026
Medium28 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Lots of Internet-exposed server management controllers are subject to offline password-cracking attacks, and adversaries have taken note.
28 Jul 2026
Medium28 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
The U.S. and Australian governments have released new guidance urging critical infrastructure organizations to prepare to isolate vital operational technology systems in the event of a cyberattack or other major…
28 Jul 2026
Medium28 Jul 2026
Organisation not named
Technology · Records not stated
The disclosure as indexed does not name the organisation.
EY confirmed the theft of client tax documents from its third-party support platform. ShinyHunters claims responsibility and is threatening to publish the data.
28 Jul 2026
Medium28 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
More than 24,000 internet-exposed servers are leaking authentication password hashes due to a 20-year-old vulnerability in their Baseboard Management Controller (BMC) interface.
28 Jul 2026
Critical28 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Coca Cola claims data was stolen from its Fairlife business after a recent ransomware attack
28 Jul 2026
High28 Jul 2026
Houston City College
Education · 831,642 records
831,642 records exposed, Academic records, Citizenship statuses, Dates of birth, Email addresses and 4 more
28 Jul 2026
Critical28 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
The hacker claimed to have stolen the information of 2 million Origin Energy customers after breaching its systems.
The post Origin Energy Data Breach Affects 900,000 Australians appeared first on SecurityWeek.
28 Jul 2026
Medium28 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Decades after it appeared in “The Terminator,” Skynet looks more like a forecast of the cyber incident in which a rogue AI system hacked into another AI company on its own.
The post For Some, So-Called ‘Skynet Day’…
28 Jul 2026
Medium27 Jul 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
Three times may be a charm for some things, but not for data security incidents. Frontier Airlines allegedly has had a third data security incident this year. First, it was BobDaHacker publishing a blog post on June 16…
27 Jul 2026
Medium27 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
The ShinyHunters extortion gang has claimed responsibility for a recently disclosed Ernst & Young data breach, saying it obtained credentials for some of the company's systems via a supply-chain attack.
27 Jul 2026
Medium27 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Monday starts with the usual promise that everything is under control. Then the logs wake up.
This week, trusted tools crossed lines, old flaws found new work, exposed systems stayed exposed, and attackers kept hiding…
27 Jul 2026
Critical27 Jul 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
The Anubis cybercrime group has taken credit for the attack and is threatening to leak data.
The post Coca-Cola Confirms Data Breach After Fairlife Ransomware Attack appeared first on SecurityWeek.
27 Jul 2026
Medium27 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
A threat actor has been using the compromised appliances to target the Microsoft 365 accounts of traveling corporate employees.
The post Hacked Public Wi-Fi Gateways Used to Harvest Corporate Credentials appeared first…
27 Jul 2026
Critical27 Jul 2026
Organisation not named
Healthcare · 23,000,000 records
The disclosure as indexed does not name the organisation.
In May 2026, hackers stole personal and dental health information from DentaQuest’s computer network.
The post DentaQuest Data Breach Potentially Impacts Over 23 Million People appeared first on SecurityWeek.
27 Jul 2026
Critical27 Jul 2026
Organisation not named
Healthcare · 1,200,000 records
The disclosure as indexed does not name the organisation.
The PEAR ransomware group claimed to have stolen 3 TB of information from the medical business management company.
The post MCBS Data Breach Affects 1.2 Million Individuals appeared first on SecurityWeek.
27 Jul 2026
High25 Jul 2026
Jessica Lyons
Technology · Records not stated
Jessica Lyons reports on today’s entry in the “No Need to Hack When It’s Leaking” files: Click To Pray, a prayer app endorsed by the Pope with hundreds of thousands of users worldwide, has…
25 Jul 2026
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