■About Password Strength
The system password policy for Teachme Biz accounts is as follows:
【Available Characters】Numbers 0-9, uppercase letters A-Z, lowercase letters a-z, symbols
【Character Count】8 to 64 characters
【Other】Cannot be identical to the account name, password strength must be "Medium" or higher
Please note that it is not possible to change to a custom password policy.
Reference: What symbols can be used in passwords https://help.teachme.jp/hc/en-us/articles/900005509666
Reference: What are the criteria for "Strong/Medium/Weak" password strength https://help.teachme.jp/hc/en-us/articles/4401857525785
■About Two-Factor Authentication
The product itself does not support two-factor authentication, but it does support SAML authentication, which allows you to indirectly implement it by setting up single sign-on.
Please check the link below for details.
Reference: Setting Up Single Sign-On
https://teachme.jp/8/manuals/11468504/
■About Regular Password Changes
In accordance with the Ministry of Internal Affairs and Communications security guidelines, we do not provide a feature for regular password changes. If necessary, please implement and enforce this within your company's operational policies.
Reference: Safe Password Management
https://www.soumu.go.jp/main_sosiki/cybersecurity/kokumin/security/business/staff/06/