In this chapter, we first introduce the main measures against voice spoofing attacks that we can find in the literature. Then, we look at security features offered by commercial voice-controllable devices, especially in terms of authentication and encryption. Subsequently, we show that all these countermeasures do not necessarily match the necessities of all users, as the usability drawbacks of some measures against voice spoofing attacks might be critical to some categories of users. However, the literature does not take this into account as of today: hence, we present a taxonomy of possible security settings for voice-controllable devices that takes user requirements into account.