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So some exchanges use TOTP 2FA (which is more secure than SMS). And some people like to copy their 2FA 'seed' which is usually a QR code that they store somewhe

by vmoore 5y ago

So some exchanges use TOTP 2FA (which is more secure than SMS). And some people like to copy their 2FA 'seed' which is usually a QR code that they store somewhere securely. Amazing how a simple QR code (or even a recovery code) can be worth so much.