My SoftBank Site Suspended After Unauthorized Access Attempt Detected; My Y!mobile Also Affected

What happened

SoftBank stopped the websites for My SoftBank, My Y!mobile, and My Menu as a safety step. Someone outside the company tried to get into some of the systems without permission. SoftBank's monitoring system spotted unusual activity in some related systems and sent an automatic alert. The company then shut down part of those systems and blocked suspicious outside connections. The apps for these services still work.

Key facts and dates

• The websites went down at 8:00 a.m. on October 17, 2026.
• The sites were still down at 9:00 a.m. on October 20, 2026.
• The attack attempt happened on October 17, 2026.
• SoftBank has not said when the sites will reopen.
• The mobile apps for these services still work.

What the sites are for

My SoftBank is a member website where customers manage their accounts and services. My Y!mobile and My Menu are similar sites for other SoftBank-related services. When a company shuts down these sites, customers usually cannot check or change their account details on the web. They can still use the apps.

Why it matters

Many customers use these sites to manage their phone accounts. Stopping the sites shows that SoftBank takes the risk seriously, but it also means people cannot use the website for now. Customers should watch for official news about when the service will return.

What to watch

• When SoftBank says the websites will reopen.
• Whether SoftBank finds any customer data was taken.
• Results of the security work SoftBank is doing now.
• Whether the apps stay safe while the websites are offline.