Encrypting Cloud Files Before You Upload Them
Most cloud services encrypt data in transit and at rest, but they hold the keys.
Options
- Use a zero-knowledge cloud provider.
- Encrypt files locally before uploading using a vault tool.
- Use an encrypted folder or container synced to your cloud.
Trade-offs
You may lose features like preview and search, and if you lose the key the data cannot be recovered.
Best practices
Use a strong passphrase, keep recovery information safe and back up the encrypted files.
Key takeaway: For sensitive files, encrypt them yourself before they reach the cloud.
