How to Lock Confidential Folders on Your Law Firm’s Devices

Whether it’s case files, billing records, or client intake forms, your law firm handles sensitive data every day. If those files are left unsecured—even on a work device—you could be putting your clients and your reputation at risk.

Here’s how to lock down confidential folders on your computer or cloud system to keep private data private.

Why Locking Folders Matters in Legal IT

Even if your device is password-protected, anyone who gains access to your desktop—or even a synced laptop—could open files you never meant to share.

Securing individual folders adds another layer of protection that helps:

• Prevent unauthorized access by staff or contractors

• Comply with legal ethics and data privacy laws

• Protect against ransomware and insider threats

Option 1: Use Built-In Encryption (Windows & Mac)

On Windows (Pro versions only)

1. Right-click the folder > Properties

2. Click Advanced

3. Check “Encrypt contents to secure data”

4. Click OK and Apply

 Note: This uses BitLocker. You must have it enabled on the drive and back up your encryption key.

▶ On Mac

1. Open Disk Utility

2. Click File > New Image > Image from Folder

3. Select the folder you want to protect

4. Choose 128-bit AES encryption

5. Set a strong password

This creates an encrypted .dmg file you can open and close like a vault.

Option 2: Lock Confidential Folders in Google Drive or OneDrive

Google Drive (Business version)

• Right-click a folder > Share

• Click Settings (gear icon)

• Turn off options like “Download, Print, or Copy”

• Share with only specific users (never use public links)

• Use Google Workspace Admin Console to restrict access company-wide

 OneDrive for Business

• Right-click the folder > Manage Access

• Use “People you choose” and restrict permissions (View only vs. Edit)

• Enable Sensitivity Labels in Microsoft Purview for added security

Option 3: Use Password Managers to Store Confidential Files

Some legal teams store documents like contracts or access keys inside tools like:

• 1Password for Business

• Bitwarden Teams

You can upload files, assign permissions by role (e.g., Partner, Paralegal), and track access logs—all with end-to-end encryption.

Option 4: Use Third-Party Folder Locking Software

If you need an extra layer of protection, tools like the following can lock folders with advanced encryption:

• VeraCrypt (free, open-source)

• AxCrypt

• Folder Lock

Avoid using freeware or old tools that aren’t updated—security risks aren’t worth the convenience.

What NOT to Do

• Don’t just “hide” folders. These can be unhidden in seconds.

• Don’t rely on ZIP files with passwords. These are easily cracked and offer weak protection.

• Don’t store client files in your personal cloud account. Always use business-grade platforms with admin controls.