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Welcome to Tech News Briefing. It's Friday, November 1st. I'm Julie Chang for the Wall Street Journal.

PayPal will start sharing customer data with retailers. We'll find out how that data could be used and what it means for you.

And having trouble falling asleep or staying asleep? New wearable tech has been in the works and could be your solution.

Those stories coming up.

Starting with PayPal.

The payments company plans to start sharing customers' personal data, including information like your

pants size, to third-party retailers.

That's according to a recent privacy update from the company.

Here to break this down for us is WSJ Personal Economics Reporter Imani Moise.

Imani, why is PayPal doing this and why now? I think the bigger surprise for me was that they weren't

already doing this. I pay closer attention to privacy policies than probably the average consumer.

And I've noticed that quite a few banks, like if I go through my credit cards, they disclose that

they're sharing this type of data. Well, not as specific as pants size, but in general, my transaction data, I assume it's fair game. So why PayPal is doing this

now is because they want to get into this market that other financial firms have been a part of,

which is the market of sharing your data or selling your data in some cases. But in order to do that,

they have to disclose it to their customers

within 30 days, which is why we're having this kind of advanced period where they're letting

you know that they're collecting this starting in November, but they won't actually start sharing

it until next summer. Do we know how PayPal is using this data? When I spoke to the company,

...