CYBER ATTACK / FINANCE
SUMITOMO MITSUI BANKING CORPORATION.
SUMITOMO MITSUI BANKING CORPORATION.
DATA BREACH
8 news reports on the Sumitomo Mitsui Banking Corporation data breach in the last 14 days, 8 of them in the last 24 hours. See every attack on the live map.
Sumitomo Mitsui Banking Corporation data breach: the details
- Type: Data breach
- Sector: Finance
- Where: Japan
- Reports, last 14 days: 8
- Latest report: 08:42 UTC, 05 November 2026
8
Average 0.0 a day
See the numbers
| Day | Reports |
|---|---|
| 23 Oct | 0 |
| 24 Oct | 0 |
| 25 Oct | 0 |
| 26 Oct | 0 |
| 27 Oct | 0 |
| 28 Oct | 0 |
| 29 Oct | 0 |
| 30 Oct | 0 |
| 31 Oct | 0 |
| 1 Nov | 0 |
| 2 Nov | 0 |
| 3 Nov | 0 |
| 4 Nov | 0 |
| 5 Nov (so far) | 8 |
Latest Sumitomo Mitsui Banking Corporation news
- Customer data leaked from Sumitomo Mitsui affiliate, up to 320,000 people affected by unauthorised accessサンスポ · Data breach · Japan · 05 Nov 2026, 08:42 UTC
- Sumitomo Mitsui Banking: email addresses of 227,216 corporate customers leaked after unauthorised access to Arara合同会社ロケットボーイズ · Data breach · Tokyo, Japan · 05 Nov 2026, 08:35 UTC
- Information leaks occur one after another at users of Ararla, Sumitomo Mitsui Banking about 220,000 casesニッキンONLINE · Data breach · Tokyo, Japan · 05 Nov 2026, 08:05 UTC
- Sumitomo Mitsui Banking customer email addresses, about 227,000, exposed in breach at mail delivery contractor AlalaTBS NEWS DIG · Data breach · Japan · 05 Nov 2026, 07:51 UTC
- Sumitomo Mitsui Banking: about 227,000 customer email addresses leaked via email delivery contractor Ararа unauthorised accessTBS NEWS DIG · Data breach · Tokyo, Japan · 05 Nov 2026, 07:51 UTC
- Data of about 227,000 Sumitomo Mitsui Banking Corp customers' email addresses leaked after unauthorised access at mail delivery contractor Ararаｄメニューニュース · Data breach · Japan · 05 Nov 2026, 07:51 UTC
- Sumitomo Mitsui Banking customer email addresses, about 227,000, exposed in unauthorised access at email delivery contractor Ararara; account numbers and PINs not confirmed leakedYahoo!ニュース · Data breach · Japan · 05 Nov 2026, 07:50 UTC
- Sumitomo Mitsui Bank: information leak linked to an NTT subsidiary and others continuesサンスポ · Data breach · Tokyo, Japan · 05 Nov 2026, 06:56 UTC