I'm Julia Borsden, and you're listening to CNBC's Tech Tech.

Our show is live weekdays at 11 a.m. Eastern, listen in.

Go! Good Tuesday morning. Welcome to Tech Check. I'm Carl Kintanilla with Dear Drabosa. John has the morning off.

Today, new rules in China send tech stocks in China lower again. Is it time to join the hedge funds and exit that trade? Plus the latest on a major data breach at Timo, what we know about a hack that may have impacted up to 100 million customers.

And then later, our America's tech giants could fall. Morgan Stanley D. making the bare case.

But we start with another sharp sell-off in Chinese stocks, as Carl mentioned,

big tech companies in China shed more than $50 billion in market cap yesterday after new

rules aimed at curbing anti-competitive behavior were announced. And they're down again today

here in the U.S. Baba, Tencent, Baidu. As you can see, they are all in the red by about 10% each. The new measures,

ban businesses from faking sales stats, posting misleading customer reviews, and hiding negative

comments. And platforms, they can't use data or other algorithms to influence customer choices.

Today, we also got a peek into the funds that actually bought shares and

are exposed to D-D-D-D-D- like Tiger Global. That stock is actually up about 4% today, but it is

down more than 40% since its June IPO. SEC filings reveal funds, including Soros, Tiger

Global, and Singapore's sovereign wealth fund were investors as of the end of Q2.

New headlines that operations at the company have slowed dramatically.

Also worth mentioning 10 cent music, you can see on your screen right there, down nearly 12% after revenue fell short of estimates,

and that is despite a big increase in paid subscribers.

And Carl, the pain continues.

There's been this idea, especially, you know, across the world here in the U.S. and China,

that consumers and users are willing to trade privacy for convenience. But the key in China is that's

really started to change with the public increasingly calling for more protection. Some users likening it to running naked with their data, you know, being exploited.

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