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.
5,574
Disclosures in the tracker, all years
2,089
Of those, indexed in 2026
8
Added in November
22
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 3 Nov 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.
78 incidents from 12 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.
- Taiwan3 Nov 2026Synology NAS device owners (worldwide)The source does not say how they got in.The Hacker News
High3 Nov 2026
Harvard
Education · 850,537 records
850,537 records exposed, Charitable donations, Citizenship statuses, Dates of birth, Education levels and 14 more
3 Nov 2026
Medium2 Nov 2026
JPN
Technology · 100,000 records
Kyodo News reports: Leading beverage manufacturer Suntory Holdings Ltd. on Monday joined a growing list of firms reporting personal data leaks, saying information relating to around 100,000 people, including employees…
2 Nov 2026
Critical2 Nov 2026
Russia's statistics agency
Government · Records not stated
An alliance of Belarusian and pro-Ukrainian hackers claimed to have taken out Russia's federal statistics agency, Rosstat, and stolen vast amounts of sensitive government data in a cyberattack.
2 Nov 2026
Medium2 Nov 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
Supermarket and grocery store refrigerators across Europe appear to have been hacked early Monday, the second such incident in recent weeks where attackers have manipulated temperature controls and caused stock to…
2 Nov 2026
High1 Nov 2026
Malaysia Airlines
Sector not stated · Records not stated
Passenger data was exposed for about 3 years through a breach at travel technology provider Amadeus.
1 Nov 2026
Medium1 Nov 2026
ATB (Ukraine grocery chain)
Retail · Records not stated
Confirmed cyberattack after hackers posted an extortion demand threatening to leak data. No confirmed record count.
1 Nov 2026
Critical1 Nov 2026
Capcom
Technology · Records not stated
Confirmed data breach affecting more than 11.7 million Capcom ID users; users warned of phishing emails.
1 Nov 2026
Critical1 Nov 2026
Nikkei Inc.
Sector not stated · Records not stated
Third data breach in about a month; exposed 1.83 million personal information records.
1 Nov 2026
Medium31 Oct 2026
Chainalysis
Sector not stated · Records not stated
Blockchain analytics firm Chainalysis disclosed a data breach after attackers used "offensive agentic techniques" to access internal systems and tools, exposing customer names, email addresses, user IDs, and…
31 Oct 2026
Medium30 Oct 2026
Fashion retailer Resolve
Finance · Records not stated
The company, billing itself as “the next-generation fashion retailer for Millennial and Generation Z consumers,” said a recent hack exposed customer payment card numbers.
30 Oct 2026
Critical30 Oct 2026
Florida
Finance · 4,900,000 records
The state’s Department of Education (FLDOE) said on Thursday it became aware of a data breach involving the Florida Student Financial Aid website on October 19.
30 Oct 2026
Critical30 Oct 2026
Binance
Finance · Records not stated
Binance, the world's largest cryptocurrency exchange, confirmed Thursday that it had been hacked in a $6.3 billion cyber heist that blockchain investigators are blaming on North Korea.
30 Oct 2026
Critical30 Oct 2026
Beyond deterministic worms
Healthcare · Records not stated
In May 2017, the WannaCry cryptoworm spread across the internet, compromising more than 200,000 computers in at least 100 countries. The National Audit Office called it the largest cyberattack ever to hit the NHS in…
30 Oct 2026
High30 Oct 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
A hacker leaks personal data on more than 40,000 DHS employees, including CBP, ICE and CISA staff, after an undisclosed breach. Personal details of thousands of U.S. Department of Homeland Security (DHS) employees are…
30 Oct 2026
Medium30 Oct 2026
ThreatsDay
Technology · Records not stated
Some attacks take real skill. Others just need someone to leave a door open. This week has both. Exposed passwords, old bugs still getting exploited, and trusted software doing things it shouldn't.
There's a strange…
30 Oct 2026
Medium29 Oct 2026
Japan Airlines
Sector not stated · 92,000 records
Japan Airlines (JAL) has announced that a data breach at Amadeus's Passenger Service System exposed the data of about 92,000 customers.
29 Oct 2026
Critical29 Oct 2026
Florida education department
Finance · 4,900,000 records
Eric Weiss reports: The Florida Department of Education says a breach of its student financial aid website may have exposed personal information, including Social Security numbers, belonging to approximately 4.9…
29 Oct 2026
Medium29 Oct 2026
Federal bankruptcy courts contractor
Government · Records not stated
"No data was extracted,” a spokesperson for BAE Systems, a federal contractor, told Recorded Future News about its probe into a cyberattack against its systems for federal bankruptcy courts.
29 Oct 2026
Medium29 Oct 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
The personal and work information was allegedly stolen from an Okta single sign-on system earlier this year.
The post Over 41,000 DHS Employee Records Leaked Online appeared first on SecurityWeek.
29 Oct 2026
Medium28 Oct 2026
Japan Airlines
Sector not stated · 2,000 records
Hackers stole passport numbers, frequent flyer numbers, email addresses and phone numbers for about 2,000 customers.
28 Oct 2026
Critical28 Oct 2026
Sony Network Communications has
Sector not stated · 2,500,000 records
Sony Network Communications has confirmed a data breach that compromised approximately 2.5 million records containing current and former customers' personal information.
28 Oct 2026
Critical28 Oct 2026
JPN
Finance · 1,460,000 records
Maddie Baker and Spencer Landers As cyberattacks continue across Japan, companies are coming to realize the great financial risk of such attacks if their lax cybersecurity systems cause millions of peoples’ personal…
28 Oct 2026
Medium27 Oct 2026
The University of Copenhagen in Denmark
Education · 525,000 records
Bill Toulas reports: The University of Copenhagen in Denmark confirmed that hackers accessed one of its test environments containing personal data belonging to 525,000 people. The educational organization detected the…
27 Oct 2026
Critical27 Oct 2026
Organisation not named
Sector not stated · 11,000,000 records
The disclosure as indexed does not name the organisation.
The following is a machine translation of an article that originally appeared in Russian. Boris Piletskiy writes: On October 22, Capcom acknowledged a massive user data breach. A hacker managed to breach Capcom ID and…
27 Oct 2026
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