Cyberattacks on Japanese Companies

[yumachan]

Since around this month, there has been a massive wave of cyberattacks targeting Japanese companies, resulting in a lot of personal data leaks. This also includes companies that cater to the geek and otome community. I wanted to share this because I figured these updates might not be reaching otome game fans outside of Japan.

I truly hope none of our fellow "otome" fans are affected by this.
Let's use this thread to share tips on how we can protect our accounts and stay safe.

By the way, a lot of Japanese corporate websites are currently down for maintenance today.

I'm not fluent in English so I use Google Translate.
Please forgive any small mistakes.


【List】
★BOOKOFF
★Comic CMoa (NTT Solmare)
★e+ (eplus)
★GEO / 2nd STREET (GEO Holdings)
★Renta! (Papiless)
★VOISING

 

[yumachan]

【Comic CMoa (NTT Solmare)】
As a reasonable accommodation, the details of the harm will be kept hidden.

Leaked Information:

You must give the following reaction to unlock:

Note:
Credit card information was NOT leaked.

 

[yumachan]

【BOOKOFF】
As a reasonable accommodation, the details of the harm will be kept hidden.

Leaked Information:

You must give the following reaction to unlock:

Note:
Credit card information was NOT leaked.

 

[yumachan]

【Renta! (Papiless)】

Due to a potential unauthorized access, the Renta! service has been temporarily suspended for emergency maintenance.

 

[yumachan]

【GEO / 2nd STREET (GEO Holdings)】

Online services have been suspended due to an unauthorized access.

Note:
Personal data and other information have NOT been leaked.

 

[yumachan]

【e+ (eplus)】
As a reasonable accommodation, the details of the harm will be kept hidden.

Leaked Information:

You must give the following reaction to unlock:

Note:
Credit card information and passwords were NOT leaked.

 

[yumachan]

【VOISING】
As a reasonable accommodation, the details of the harm will be kept hidden.

Leaked Information:

You must give the following reaction to unlock:

Note:
Credit card information and passwords were NOT leaked.

 

[yumachan]

Recommended security measures include:
・Not reusing passwords
・Enabling two-factor authentication
・Change passwords periodically
・Making your passwords longer

However, if the service provider itself falls victim to a cyberattack and suffers a password breach, it feels like the length of your password—or even changing it—might not make much of a difference.
Still, it is more important than doing nothing at all.