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7/10

ShieldCheck

A consumer phone-privacy concierge that audits your Android or iPhone against a library of forensic-extraction and at-rest attack techniques (the same ones GrapheneOS hardens against) and gives non-technical users a plain-language checklist to close the gaps.

Target user

journalists, activists, domestic-abuse survivors, and frequent international travelers who worry about phone searches but aren't power users

Features
  • Plain-language risk audit — 'your lock screen can be bypassed via X' with the fix in one tap
  • Destination-aware travel mode that pre-configures your phone before a border crossing or high-risk trip
  • Auto-lock scheduler that triggers tighter settings when you're in flagged areas (border, court, protest)
  • Self-destruct / duress-pin guidance with tested configurations, not just 'turn on Find My iPhone'
Why now

GrapheneOS publicly enumerating forensic-extraction protections signals that even locked phones are not safe by default; mainstream users now need a translation layer.

Signals · overall 7/10
Demand
6/10

121 HN points on GrapheneOS forum thread shows engaged security community; the broader consumer need is real but quieter

Whitespace
7/10

Most phone-security advice targets power users; consumer-facing translation of forensic research is rare

Monetization
6/10

Privacy-conscious users pay for 1Password, ProtonMail, and Lockdown Privacy — proven willingness

Longevity
9/10

Surveillance and phone seizure are permanent concerns; this need only grows as forensics becomes cheaper

Feasibility
5/10

Hard — requires ongoing research into iOS/Android attack surface and Apple/Google changes that break features silently

GrapheneOS protections against data extraction from locked devices · 121 points · 63 commentsHacker News · 2026-07-26 (today)