Harsher Device Checks from SafetyNet Attestation
summary
SafetyNet Attestation gained an evaluationType parameter that reveals whether attestation is HARDWARE_BACKED or BASIC; Google rolled this from mid‑2020 trials to wide deployment in Jan 2021 and added device-name checks in Sep 2021. The change makes CTS profile match and basic integrity decisions more reliable, but Magisk + Universal SafetyNet Fix can still downgrade HARDWARE_BACKED to BASIC; recommended practice is to require HARDWARE_BACKED server‑side and keep a vetted device list because many older Android builds remain unsupported.
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