Massive leaks of Japanese companies' customer information and email addresses
In Japan, a leak of 1.26 million department store customer records and concerns over a possible leak of 9 million emails emerged, while a leak of 77 million email addresses was also confirmed. Following a ransomware attack on a watch repair contractor, four companies, including Don Quijote, reported possible leaks of customer information. A Nomura affiliate and Bic Camera were also among those affected by information leaks.
Key facts
- Affected organization
- Being confirmed
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Not confirmed
- Cause / method
- Not confirmed
- Location
- Japan
If your data was exposed
Exposed dataEmail
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organization’s official website or app.
Timeline
- A leak of 1.26 million Japanese department store customer records and concerns over a possible leak of 9 million emails emerged.
- Four companies, including Don Quijote, announced possible leaks of customer information following a ransomware attack on a watch repair contractor.
- Further information leaks came to light in Japan, including a leak of 77 million email addresses.
- Information leaks affecting a Nomura affiliate and Bic Camera came to light.
Also affected by this incident
Don Quijote watch repair customers’ personal data may have leaked
↳ Knock-on damage from another organization’s incident · View original incidentA ransomware attack on Don Quijote’s watch repair contractor raised the possibility that personal information belonging to customers who requested repairs had been exposed. The scale of the impact and response measures have not been confirmed.
Related reports: 2 · last report →Bic Camera contractor breach exposes 15.2 million customer records
↳ Knock-on damage from another organization’s incident · View original incident15.2MImpact: 15.2 million customer records belonging to newsletter recipients
Unauthorized access at a Bic Camera contractor was confirmed to have exposed 15.2 million customer records belonging to newsletter recipients. The incident was linked to a breach of Arara's email distribution system. A separate leak of 133,039 records from a corporate customer inquiry form was distinguished from this email distribution system incident.
Related reports: 5 · last report →
4 related reports
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.