Ransomware disrupts bookings and card payments at Japan’s Keio Group
Japan’s Keio Group suffered a ransomware attack that disrupted its business systems. Hotel reservations and card payments at retail stores were affected. The attack also delayed the release of its interim financial results.
Key facts
- Affected organization
- Keio
- Incident type
- Ransomware
- Occurred / detected
- Not confirmed
- Scale of damage
- Business system outages, disruption to hotel reservations and retail card payments, and a delay in the release of interim financial results
- Cause / method
- Ransomware attack on servers
- Location
- Japan
Timeline
- It was reported that a ransomware attack had disrupted hotel reservations and card payments at retail stores.
- Keio confirmed disruption to its business systems caused by a ransomware attack.
- It was reported that the ransomware attack had delayed the release of interim financial results.
- The delay in the release of interim financial results due to the attack was reported again.
Also affected by this incident
Times Car data leak in wake of Keio ransomware attack
↳ Knock-on damage from the Keio incident · View original incidentA ransomware attack on railway operator Keio led to a data leak at Times Car, the car-sharing service of Times Mobility Co., Ltd. When the incident occurred, the scale of the leak and the response have not been confirmed.
Read on CPO Magazine ↗
7 related reports
- Ransomware Attack Hits Japan's Keio Corporation Group, Disrupting Card Payments at Retail Stores
- Ransomware Hits Japanese Keio Group, Disrupting Hotel Bookings and Card Payments
- Japan's Keio confirms ransomware attack disrupted business systems
- Japanese railway operator Keio hit by ransomware attack
- Ransomware Attack Hits Keio Railway Group Servers and Disrupts Business Systems
- Keio stock faces delayed interim results after ransomware attack
- Keio stock delays interim results after ransomware attack
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organization’s official statements for accurate details.