JE

Confirmed breach

JR East data breach

JPJapan · JR東海

FNNプライムオンライン and internationalpress reported a data breach at JR East (Japan) on 26 October 2026, and it has been confirmed. It affected 170,000 records. Exposed: Email addresses and Names.

Status

Confirmed breach

People affected

170,000 records

Reported

26 October 2026

What was exposed

• Email addresses
• Names

How it happened

How

Hacking サイバー攻撃によって第三者に閲覧されるなど source

Sources

• News reportFNNプライムオンラインJR東海『スマートEX』等の利用者の個人情報約17万件が漏えい メール ...
• News reportinternationalpressFiltración de datos afecta a 170.000 clientes del tren bala en Japón

If JR East had your data

1. Look for JR East’s own notice or letter: it should say what of yours was involved. Keep it.
2. Expect scams that use your details: calls, texts or emails pretending to be JR East, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

• Spot the scams that use leaked data →
• What to do after a data breach →

Email me if JR East has another breach

Alert me

One email to confirm first. We use your address only for this alert, and one click deletes it.

More breaches in Japan

1. BL Bandai Logistics PalreportedJPJapan · 27 October 2026 Phone numbersNamesAddresses+1 –not reported
2. SN Sony Network CommunicationsJPJapan · 27 October 2026 Financial account and card detailsPasswords and loginsEmail addresses+3 2.6Mcustomer records
3. J JoshinJPJapan · 26 October 2026 Passwords and loginsPhone numbersNames+6 6.2Mrecords
4. RT Rakuten TravelJPJapan · 26 October 2026 Financial account and card details 2.6Mcustomers
5. SC Shizuoka CityreportedJPJapan · 26 October 2026 Email addressesNames 10Krecords

Every breach in Japan →

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Found a mistake? Tell us and we correct it.