A. receiving call from the IT department asking you to verify your username/password to maintain the account

B. receiving an invite to your department's weekly WebEx meeting

C. sending a verbal request to an administrator to change the password to the account of a user the administrator does know

D. receiving an email from HR requesting that you visit the secure HR website and update your contract information

E. receiving an unexpected email from an unknown person with an uncharacteristic attachment from someone in the same company