The relationship between consumers and their connected devices rests on a simple trade-off: devices provide convenience in exchange for users' data.

It's a simple give-and-take.

But a recent murder case in Arkansas showed just how unstable this relationship can be when Arkansas police ordered Amazon to turn over information collected from a murder suspect's Echo.

Amazon fought to keep the information private but the case begs the question: At what point does our appetite for convenience give way to our desire for privacy?

The answer may surprise you.

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