Can someone else use Alexa to access my Westpac accounts?
When you set up the Westpac Banking skill, you will be prompted to set up a 4-digit passcode which you will need to provide before Alexa responds to questions about your Westpac accounts.
If this security measure is bypassed (e.g. you disable passcode at set up), or if someone else knows your passcode (e.g. by overhearing you say the passcode to Alexa), it is possible that someone else could access information about your linked Westpac accounts through Alexa in the same way that you could. You are responsible for how Alexa is used, and all communication with the Westpac Banking skill via Alexa.