MOUNTAIN VIEW, Calif. — Just down the road from Google’s main campus here, engineers for the company are accelerating what has become the newest arms race in modern technology: They are making it far more difficult — and far more expensive — for the National Security Agency and the intelligence arms of other governments around the world to pierce their systems.
Image: Google servers in Douglas County, Ga. The company is encrypting more data as it moves between servers. Credit Connie Zhou/Google
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