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.
5,292
Disclosures in the tracker, all years
2,005
Of those, indexed in 2026
49
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 17 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Twelve months
Disclosures indexed each month.
Counted on the date each disclosure was recorded in the index. The current month is shown in red and is still open. A phone shows the last six months.
Worldwide · How they got in
Incidents worldwide, by country.
64 incidents from 11 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.
- France13 Oct 2026Supermarkets across EuropeHow they got in: a known flaw in software the victim ran.SecurityWeek
Critical16 Oct 2026
Baltimore suburb
Government · Records not stated
Anne Arundel County, Maryland, said an intruder stole files from government systems, and investigators are working to assess how much data was exposed.
16 Oct 2026
Critical16 Oct 2026
Organisation not named
Sector not stated · 11,000,000 records
The disclosure as indexed does not name the organisation.
Burger King Japan, the Japanese subsidiary of global fast-food giant Burger King, disclosed a major data breach after attackers accessed a server containing 11.18 million customer records.
16 Oct 2026
Medium15 Oct 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
France-based operators of Danfoss refrigeration controllers have sharply reduced their internet exposure after the October 11 cyber-attack
15 Oct 2026
Critical15 Oct 2026
Ransomware Attacks Intensify
Sector not stated · Records not stated
Guru Baran reports: Ransomware gangs are moving beyond locked files and stolen data. Criminals now threaten employees, executives, and their families to force companies to pay. According to the Semperis 2026 Ransomware…
15 Oct 2026
High14 Oct 2026
Crunchbase
Technology · 559,908 records
559,908 records exposed, Email addresses, Employers, Job titles, Names and 3 more
14 Oct 2026
Medium13 Oct 2026
Russian internet provider SkyNet
Sector not stated · Records not stated
One of St. Petersburg's major internet providers said its network had been under a distributed denial-of-service (DDoS) attack since October 6, affecting services including online gaming, voice calls and video…
13 Oct 2026
Medium13 Oct 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
The South African retail giant The Foschini Group (TFG) disclosed a cyberattack that disrupted IT systems at three of its British fashion brands, leaving some services unavailable.
13 Oct 2026
Medium12 Oct 2026
Sharecare
Healthcare · 318,185 records
318,185 records exposed, Dates of birth, Email addresses, Employers, Genders and 6 more
12 Oct 2026
Critical11 Oct 2026
Nippon Columbia malware incident
Sector not stated · 8,700,000 records
Daiichi Kosho, a major Japanese entertainment system maker, disclosed that a malware infection at its contractor, Nippon Columbia, exposed more than 8.7 million customer and employee records.
11 Oct 2026
High9 Oct 2026
Hundreds of thousands
Sector not stated · Records not stated
A company known for wearable cardiac sensors, iRhythm, has begun notifying states of the impact of a data breach from the summer.
9 Oct 2026
Medium9 Oct 2026
Neogen
Retail · 435,963 records
435,963 records exposed, Email addresses, Employers, Job titles, Names and 3 more
9 Oct 2026
Critical8 Oct 2026
ThreatsDay
Technology · Records not stated
The crooks have trust problems of their own. One ransomware affiliate decided to keep the profits for himself. Elsewhere, an attacker left a server exposed, complete with tools and traces of an intrusion. Apparently…
8 Oct 2026
Medium7 Oct 2026
CyrusOne
Retail · 373,460 records
373,460 records exposed, Email addresses, Employers, Job titles, Names and 3 more
7 Oct 2026
Medium7 Oct 2026
PoeLLM malware infects
Sector not stated · Records not stated
A cryptomining campaign targeting exposed AI services is using PoeLLM malware to turn compromised servers into scanners and exploit launchpads.
7 Oct 2026
Critical7 Oct 2026
Advantest
Sector not stated · Records not stated
Advantest Corporation is notifying affected individuals that a ransomware attack earlier this year exposed their personally identifiable data.
7 Oct 2026
Medium7 Oct 2026
Organisation not named
Technology · Records not stated
The disclosure as indexed does not name the organisation.
Hackers compromised a third-party communication platform and sent rogue notifications to ASOS users.
The post ASOS Confirms Cyberattack, Data Breach appeared first on SecurityWeek.
7 Oct 2026
Medium7 Oct 2026
Double Counter
Finance · 274,922 records
274,922 records exposed, Email addresses, Geographic locations, Names, Usernames
7 Oct 2026
Critical7 Oct 2026
Angel One
Finance · 6,765,054 records
6,765,054 records exposed, Bank account numbers, Dates of birth, Email addresses, Financial investments and 4 more
7 Oct 2026
Medium6 Oct 2026
ASOS
Technology · Records not stated
UK fashion retailer ASOS confirmed a data breach Tuesday after hackers sent unauthorized push notifications through its mobile app while claiming to have stolen customer data from the company's Snowflake environment.
6 Oct 2026
Medium5 Oct 2026
Ukraine grocery chain ATB
Retail · Records not stated
Ukraine’s largest grocery store chain, ATB, confirmed that it was hit by a cyberattack after hackers posted an extortion demand on its website.
5 Oct 2026
Medium5 Oct 2026
Japanese media group Nikkei
Sector not stated · Records not stated
The Japanese media giant Nikkei disclosed a cyber incident involving an employee email account that may have compromised journalistic sources.
5 Oct 2026
Medium5 Oct 2026
Daiwa Securities
Sector not stated · 110,000 records
Takashi Nakamichi and Ryo Horiuchi report that Daiwa Securities, Japan’s second-largest brokerage and investment banking firm, is responding to a breach at one of its vendors. Daiwa Securities Group said…
5 Oct 2026
Medium5 Oct 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Known as Rey, the suspect is reportedly helping the FBI identify and locate other members of the extortion group.
The post Alleged ShinyHunters Leader Arrested in Jordan appeared first on SecurityWeek.
5 Oct 2026
Medium3 Oct 2026
Danish university DTU breach
Education · 200,000 records
The Technical University of Denmark (DTU) says information belonging to up to 200,000 users may have been exposed after hackers accessed its identity and access management system and downloaded a large amount of data. [.
3 Oct 2026
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