Device Encryption & Security
Procedure: SP-007 | Version: 1.5 | Last Updated: 1 April 2025 | Owner: Marcus Chen
Purpose: To verify and enable device encryption, set BIOS/UEFI passwords, and configure secure boot on customer devices when requested.
BitLocker (Windows)
- Check current encryption status:
Manage-bde -status C: - Enable BitLocker:
Manage-bde -on C: -RecoveryPassword - Save the recovery key to
S:\Security\BitKeys\[JobNumber].txt - NEVER store the recovery key on the encrypted drive itself
- Verify encryption is active:
Manage-bde -status C:should show "Protection On"
FileVault (macOS)
- System Preferences → Security & Privacy → FileVault → Turn On FileVault
- Save the recovery key to
S:\Security\FileVaultKeys\[JobNumber].txt - Ensure the customer has a way to unlock the Mac (Apple ID or local password)
- Verify encryption is progressing (shown in the FileVault window)
BIOS/UEFI Passwords
- Set BIOS password only if customer requests it (document in the job record)
- Enter BIOS (Del or F2 at boot) → Security tab → Set Supervisor/User Password
- Enable Secure Boot where supported (under Boot tab)
- NEVER set a BIOS password without the customer's explicit knowledge
- Record BIOS passwords in the job record — the customer will need these
Secure Boot Verification
- Enter BIOS and verify Secure Boot is enabled
- Check that the OS is booted in UEFI mode (not Legacy/CSM)
- Verify TPM 2.0 is enabled (required for BitLocker and Windows 11)
- Run
tpm.mscin Windows to confirm TPM status
Common Issues
| Issue | Likely Cause | Solution |
|---|---|---|
| BitLocker won't enable | TPM not enabled in BIOS | Enable PTT/TPM in BIOS Security settings |
| "Device not ready for BitLocker" | System partition missing | Run manage-bde -protectors -enable C: |
| Secure Boot greyed out | CSM/Legacy boot enabled | Disable CSM, switch to UEFI boot |
| Mac won't boot after FileVault | Recovery key issue | Boot to Recovery (Cmd+R), unlock disk manually |
Security Note: Always store encryption keys and passwords securely in the designated server locations. Never write them on sticky notes attached to the device. Customer security is our responsibility.
