Iran-linked hackers wiped out Stryker, one of America's biggest medical companies, erasing 200,000 devices overnight. Now Google, Amazon and Microsoft could be next. Here's what the escalating cyber war means for you.

Plus, Uber's women-only rides, a fresh batch of emojis, and how AI is secretly jacking up your electric bill.

And after her truck flipped into a freezing river, Andi Burns had only four inches of air and no way to reach her phone. Her $399 Apple Watch saved her life.

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