see https://www.woltlab.com/community/thread/299745-language-wcf-acp-user-security-multifactor/
<item name="wcf.acp.user.action.unconfirmEmail"><![CDATA[Unconfirm Email Address]]></item>
<item name="wcf.acp.user.exportGdpr"><![CDATA[Export Personal Data (GDPR)]]></item>
<item name="wcf.acp.user.coverPhoto.description"><![CDATA[You can upload a cover photo on their user profile page.]]></item>
- <item name="wcf.acp.user.security.multifactor"><![CDATA[Multi-factor authentication]]></item>
+ <item name="wcf.acp.user.security.multifactor"><![CDATA[Multi-factor Authentication]]></item>
<item name="wcf.acp.user.security.multifactor.active"><![CDATA[Active]]></item>
<item name="wcf.acp.user.security.multifactor.active.description"><![CDATA[This user account is protected by a second factor.]]></item>
<item name="wcf.acp.user.security.multifactor.disable"><![CDATA[Completely Disable Multi-factor Authentication]]></item>