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How technology works

Encryption: how your messages stay private

Explain how end-to-end encryption keeps messages private and why governments sometimes oppose it.

45 minLevels
L0L1L2L3L4L5

Lessons

1 · 3-minute lesson3 min

Distinguish what encryption protects from what it leaves exposed in a typical messaging app.

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2 · Coming soon

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Start the 3-minute lesson