Why did I receive an email stating that Account Assumption was granted on my Zendesk account?
This occurs when an administrator on your account grants Zendesk the ability to access your account to troubleshoot an issue. Granting access to your account is done by enabling a feature known as Account Assumption. This is necessary occasionally in order to assist you as quickly as possible with your support request. As an added security measure, Zendesk will send an email to all administrators on the account whenever this feature is enabled.
For more information about Account Assumption, see the article: Granting Zendesk temporary access to your account.