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ShieldID

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Notes on identity, privacy and how the pipeline works.

Written from our own research files, not from a press kit. Posts marked Draft are still in editorial review and may change.

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Draft· 6 min read

How active liveness detection works

Why a guided challenge beats a single selfie, the difference between active and passive liveness, and what a presentation attack looks like.

LivenessFraudHow it works
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Draft· 5 min read

Reading a PDF417 barcode

What's encoded on the back of a North American driver's licence, the AAMVA standard behind it, and how it's cross-checked against the front.

Document verificationOCRHow it works
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