CYBER ATTACK / TECHNOLOGY
YUMILINK.
YUMILINK.
DATA BREACH
13 news reports on the Yumilink data breach in the last 14 days, 0 of them in the last 24 hours. See every attack on the live map.
Yumilink data breach: the details
- Type: Data breach
- Sector: Technology
- Where: Japan
- Reports, last 14 days: 13
- Latest report: 06:28 UTC, 28 October 2026
8
Average 1.0 a day
See the numbers
| Day | Reports |
|---|---|
| 17 Oct | 0 |
| 18 Oct | 0 |
| 19 Oct | 1 |
| 20 Oct | 0 |
| 21 Oct | 0 |
| 22 Oct | 0 |
| 23 Oct | 0 |
| 24 Oct | 1 |
| 25 Oct | 0 |
| 26 Oct | 8 |
| 27 Oct | 2 |
| 28 Oct | 1 |
| 29 Oct | 0 |
| 30 Oct (so far) | 0 |
Latest Yumilink news
- Possible data leak at H2O Retailing subsidiary as member email addresses are exposed through unauthorised access to Yumilink's email delivery serviceYahoo!ニュース · Data breach · Japan · 28 Oct 2026, 06:28 UTC
- Resona Bank and two other banks may have had addresses and other data leaked via unauthorised access to email delivery contractor Yumilink; account and financial transaction data not includedTBS NEWS DIG · Data breach · Japan · 27 Oct 2026, 04:27 UTC
- JR Central shares fall as personal data leak at Yumilink widens to Shinkansen bookingsYahoo!ファイナンス · Data breach · Tokyo, Japan · 27 Oct 2026, 00:19 UTC
- Yumilink: data leak of over 50 million itemsYahoo!ニュース · Data breach · Tokyo, Japan · 26 Oct 2026, 21:00 UTC
- Yumilink: possible leak of 51.62 million records in totalテレ朝NEWS · Data breach · Japan · 26 Oct 2026, 16:48 UTC
- Yumilink: over 50 million records leaked through unauthorised accessYahoo!ファイナンス · Data breach · Japan · 26 Oct 2026, 15:10 UTC
- Japan's Yumir Link data breach expands to 51.62 million records; unauthorised output confirmed on 49 systemsBigGo Finance · Data breach · Japan · 26 Oct 2026, 14:55 UTC
- Personal data of Shinkansen online booking members leaked, about 170,000 cases across three JR companies after unauthorised access to Yumilink systemYahoo!ニュース · Data breach · Japan · 26 Oct 2026, 13:24 UTC
- Yumilink reports unauthorised access leaking up to about 51.63 million records, with scope expanded to 50 systemsINTERNET Watch · Data breach · Japan · 26 Oct 2026, 12:17 UTC
- Yumilink confirms personal data leak of over 51.6 million records; JR Central and Hankyu department store among usersTBS NEWS DIG · Data breach · Tokyo, Japan · 26 Oct 2026, 11:16 UTC
- Yumilink confirms leak of personal data on over 51.62 million records; JR Central and Hankyu department stores among usersYahoo!ニュース · Data breach · Tokyo, Japan · 26 Oct 2026, 11:15 UTC
- Yumilink confirms leak of over 51.62 million personal records; JR Central and Hankyu department store among usersTBS NEWS DIG · Data breach · Japan · 24 Oct 2026, 07:00 UTC
Every report, last 14 days
- Unauthorised access to email delivery company Yumilink, possibly leaking about 9 million personal records including email addressesTBS NEWS DIG · Data breach · Japan · 19 Oct 2026, 07:00 UTC