How to Securely Send Sensitive Documents

Protect your confidential files with end-to-end encryption and zero cloud storage.

Sending sensitive documents via email, cloud storage, or messaging apps puts your data at risk. These services store your files on their servers, creating potential security vulnerabilities.

Here's how to share confidential documents with true privacy and security.

Risks of Traditional Methods

Email Attachments

Emails are often unencrypted, stored on multiple servers, and can be intercepted or accessed by service providers.

Cloud Storage Links

Files on Google Drive, Dropbox, etc. are stored on third-party servers and can be accessed by the provider or hackers.

Messaging Apps

WhatsApp, Telegram, etc. compress files and may store copies on their servers for syncing.

How InstDrop Keeps Documents Secure

InstDrop uses peer-to-peer technology to transfer files directly between devices without any server storage.

End-to-End Encryption

Files are encrypted with WebRTC DTLS – the same security used by banks and governments.

No Server Storage

Files go directly from sender to receiver. Nothing is ever stored on our servers.

No Traces Left

Once the transfer is complete, there's no copy of your document anywhere.

How to Send Secure Documents

1

Open InstDrop

Go to InstDrop on both the sending and receiving device:

instdrop.cz
2

Create Connection

Click 'Create Connection' on one device. Share the QR code or link with the recipient.

3

Enable Paranoid Mode

For maximum security, enable Paranoid Mode. This ensures only one connection can be made – no one else can join.

Paranoid Mode is recommended for highly sensitive documents.

4

Select Your Document

Click 'Select File' and choose the document you want to send. It will be encrypted before transfer.

5

Secure Transfer Complete

The document is transferred directly to the recipient. No copies exist on any server.

Security Best Practices

Always use Paranoid Mode for sensitive documents
Verify the recipient is the intended person before sending
Use a trusted network – avoid public WiFi for highly confidential files
Delete the document from your browser downloads after saving it securely
Consider password-protecting documents before transfer for extra security

Common Use Cases

Legal Documents

Share contracts, agreements, and legal files with clients securely.

Medical Records

Transfer patient records between healthcare providers safely.

Financial Documents

Share tax returns, bank statements, and financial reports privately.

Personal ID Documents

Send passport copies, ID scans, and other identity documents securely.

Ready for Secure Sharing?

Start transferring sensitive documents with true end-to-end encryption.

Try InstDrop

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