Amazon has disabled two key privacy features in its Alexa smart speakers, in a push to introduce artificial intelligence-powered “agentic capabilities” and turn a profit from the popular devices.

Starting today (March 28), Alexa devices will send all audio recordings to the cloud for processing, and choosing not to save these recordings will disable personalisation features.

A voice assistant works by constantly listening for a “wake word”, such as “Alexa”. Once woken, it records the command that is spoken and matches it to an action, such as playing a music track. Matching a spoken command to an action requires what computer scientists call natural language understanding, which can take a lot of computer power.

Matching commands to actions can be done locally (on the device itself), or sound recordings can be uploaded to the cloud for processing. On-device processing has improved substantially in recent years, but is still less accurate than using the cloud, where more computer power is available.

Alexa devices send recordings to the cloud by default. However, some high-end Echo models previously supported a setting called “Do not send voice recordings”.

If this setting was enabled, all recordings were processed locally. In practice, only a tiny fraction of Echo users (around 0.03% had this turned on.

In the first change, this setting is being disabled, and all recordings will be........

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