The Warmind Network skill can be used to manage a Destiny character's inventory via any Amazon Alexa compatible device.
Warmind Network does not store any user data, it simply uses the Bungie.net account linked via the Alexa companion app to access a user's Destiny account.
To revoke account access from the Warmind Network skill, just disable the skill in the Alexa companion app.
In order to improve the accuracy of item translations, Warmind Network stores a list of items that were translated by Alexa and could not be found in the Destiny item list. This list of words will be used to create a better mapping of words heard by Alexa to in-game Destiny item names.