Wu said he learned that some users questioned whether the encrypted wallet Phantom was tracking the wallet internally and suspected of selling it. Brandon Millman, a co-founder of Phantom, said that it has never and will never sell or share user data with anyone, and has never made users' data public. Addresses are grouped and then sold or shared with external teams, but do use a range of techniques to prevent users from manipulating our task functionality, such as preventing a task from being completed more than once per device; we need some form of witch protection, To ensure that our dapp partners acquire real users instead of allocating all tokens to Farmers. If the user wishes to completely opt out of this anonymous analysis, they can go to Wallet Settings > Privacy > and turn off "Share Anonymous Analysis".