Big Tech must protect user data against spying, security expert says

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Big Tech must protect user data against spying, security expert says

Alex Stamos, former chief security officer at Facebook who is now an adjunct professor at Stanford University, joins "Squawk Box" to discuss. Last week, federal prosecutors charged two former Twitter employees with spying on users on behalf of Saudi Arabia's government.
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Mon, Nov 11 201910:01 AM EST