Walmart

What this means

It gives voice prints, iris or retina images, face geometry, and palm prints or fingerprints as examples.

Depending on which Walmart products and services you use and on your device and account settings, Walmart may collect biometric information such as voice prints, images of your iris or retina, your face geometry, and your palm prints or fingerprints.

Why this matters

Biometric information describes physical characteristics such as your face, eyes or fingerprints. Unlike a password, it cannot be reset if it is ever exposed.

What this means

It gives the way you type as an example of network activity information, and says this helps tell whether it is you or a bot.

Walmart gives keystroke patterns — the way you type — as an example of the network activity information it may collect, and says this helps it tell whether it is you or a bot interacting with it.

Why this matters

Behavioral signals like typing rhythm are collected in the background rather than entered by you. They are commonly used to tell people apart from automated bots.