hi-ho: impersonation logins to My Page

On 8 October, internet provider hi-ho said a third party logged in to the My Page of services such as Hikari Giga and BiZiMo Hikari while posing as customers and viewed, or may have viewed, their data. Callers trying to switch customers to another provider got the login details from customers over the phone. There were 38,509 unauthorized logins counted per contract, and names, addresses, phone numbers, emails, contract and billing details may have been viewed. The login method using phone number, postcode and birth date was abolished.