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Before, During & After Sessions

Last updated: September 10, 2026

Before, During & After Sessions


Before Every Session

  • Verify air-gap: Disconnect WiFi and ethernet before launching XColdPro
  • Check USB drive: Inspect for physical tampering, and confirm the drive mounts with the same drive letter and volume label used when the vault was bound
  • Confirm environment: Ensure no one is watching your screen or can see your password entry
  • Verify integrity: SentinelGuard runs automatic file integrity checks on launch

During Operations

  • Verify addresses: Always compare first and last 6 characters on both devices
  • Check transaction details: Amount, destination, network fees — verify everything before signing
  • Use Visual Fingerprinting: Match the visual pattern between sending and signing devices
  • One operation at a time: Complete each transaction before starting another
  • Watch for warnings: SentinelGuard alerts require immediate attention — do not dismiss

After Every Session

  • Properly close XColdPro: Use the application's exit function (triggers automatic EMBO memory wipe)
  • Safely eject USB: Always use "Safely Remove Hardware" — prevents data corruption
  • Secure storage: Store USB drive in safe, locked location when not in use
  • Disconnect completely: Remove USB from computer — physical air-gap restored

Ongoing Maintenance

  • Check seed phrase backups annually — verify paper is legible, ink hasn't faded
  • Test recovery procedure — periodically restore from seed on a separate USB drive
  • Update XColdPro — install updates from official portal when available
  • Monitor USB drive health — replace drives showing wear (3–5 year recommended lifecycle)
  • Review beneficiary information — keep Lazarus Protocol beneficiaries, attorney/executor contacts, and recovery instructions current (HellBound/Nyxor)