Issue Description
Shared Macs expose personal data if accounts and permissions are misconfigured.
Common Causes
- Shared login accounts
- Saved passwords
- Open file permissions
Step-by-Step Solution
Step 1: Create Separate User Accounts
- System Settings → Users & Groups
- Create individual user accounts
Step 2: Disable Password Saving
- Do not save passwords in browsers
- Sign out after use
Step 3: Enable FileVault
- System Settings → Privacy & Security → FileVault
- Encrypt entire disk
Step 4: Use Guest Account for Visitors
- Enable Guest User with limited access
Explore Further
- Use Parental Controls
Prevention & Best Practices
Never share macOS login credentials.