When you share documents with clients, you are often handling sensitive information. Contracts contain financial terms. Tax returns include Social Security numbers. Medical records have protected health information. Legal documents contain privileged communications. Sending these files insecurely creates real risk for your business and your clients.
This guide covers how to send documents securely to clients using encryption, password protection and secure sharing practices that protect both parties.
Why Email Is Not Secure Enough for Client Documents
Email feels private but it is not designed for security. Standard email is transmitted in plain text between mail servers. Your message may pass through multiple servers before reaching the recipient. Each server can read and store the contents.
Gmail and Outlook use TLS encryption for messages in transit, but this only protects the connection between your device and the mail server. Google and Microsoft can still read your emails on their servers. If either account is compromised, every attachment is exposed.
Email also creates permanent copies. Every attachment lives in both the sender's and recipient's mailbox indefinitely. Years after a project ends, sensitive documents remain in email archives waiting to be exposed in a breach.
What Secure Document Sharing Looks Like
Truly secure document sharing has four properties:
- Encryption in transit protects files while they move between devices (HTTPS/TLS)
- Encryption at rest protects files while stored on the server
- End-to-end encryption ensures the server itself cannot read the files
- Access control limits who can view and download the documents
Most file sharing services provide only the first two. Google Drive encrypts files at rest but Google holds the encryption keys and can access your files. Dropbox uses AES-256 at rest but their employees can access file contents for support and legal compliance.
End-to-end encryption is the only approach where the service provider truly cannot read your files.
How to Send Documents Securely with EasySend
Step 1: Go to EasySend and Enable Encryption
Open easysend.co and toggle the "End-to-End Encryption" option before uploading. This activates AES-256-GCM encryption that runs entirely in your browser.
Step 2: Set a Strong Password
Choose a password of at least 12 characters. Use a mix of letters, numbers and symbols. This password is used to derive the encryption key via PBKDF2 with 100,000 iterations. The password never leaves your device and never touches the server.
Step 3: Upload Your Documents
Drag your documents onto the page. They are encrypted in your browser before being uploaded. The server receives only encrypted ciphertext. EasySend accepts all document formats: PDF, Word (DOCX), Excel (XLSX), PowerPoint, images and any other file type.
Step 4: Share the Link via One Channel
Send the share link to your client via email, your client portal or a messaging app.
Step 5: Share the Password via a Different Channel
Send the password through a separate channel. If you sent the link via email, send the password via text message or phone call. This two-channel approach means an attacker would need to compromise both channels to access the documents.
Adding Password Protection Without Encryption
If end-to-end encryption is more than you need for a particular transfer, EasySend also offers server-side password protection. Set an access password during upload and recipients must enter it before viewing the download page. The password is hashed with bcrypt on the server.
This is appropriate for documents that are not highly sensitive but should not be publicly accessible. Examples include draft proposals, meeting notes or project timelines.
Best Practices for Sending Client Documents
- Use encryption for anything containing personal data including names, addresses, financial information or health records
- Set file expiration so documents do not remain accessible forever. EasySend free tier auto-deletes after 3 days
- Use separate channels for the link and password. Never put both in the same message
- Verify the recipient before sharing. Confirm their identity through a known communication channel
- Keep your own copy stored securely. Do not rely on the sharing service as your only backup
- Notify clients when files expire so they download within the availability window
- Use descriptive file names so clients can identify documents without opening them
Industry-Specific Considerations
Legal Documents
Attorney-client privilege requires that privileged communications remain confidential. Use end-to-end encryption for all privileged documents. The 3-day auto-expiry is a feature here because it limits the exposure window. Legal file sharing guide.
Financial Documents
Tax returns, financial statements and investment records contain data that identity thieves target specifically. Always use encryption and password protection. Consider the Lifetime storage plan ($4.99) if clients need long-term access to financial records. Finance file sharing guide.
Healthcare Documents
Protected health information (PHI) is regulated under HIPAA in the United States and similar laws in other jurisdictions. End-to-end encryption with zero-knowledge architecture means EasySend never has access to PHI. Healthcare file sharing guide.
Real Estate Documents
Purchase agreements, inspection reports and mortgage documents contain personal financial information for both buyers and sellers. Bundle all documents under one link for clean delivery. Real estate file sharing guide.
What About Document Signing?
EasySend is designed for secure document delivery, not document signing. For contracts that require signatures, use a dedicated e-signature service (DocuSign, HelloSign or PandaDoc) for the signing step. Use EasySend for delivering the supporting documents, exhibits, attachments and reference materials that accompany the contract.
Tracking Document Access
EasySend provides download analytics so you know when your client has accessed the documents. You can also enable email notifications to receive an alert the moment a file is downloaded. This creates an informal receipt of delivery without requiring the client to confirm manually.
Start Sharing Documents Securely
Your clients trust you with sensitive information. Protect that trust by using encrypted file sharing instead of email attachments. Go to easysend.co, enable encryption, upload your documents and share the link. It takes less than a minute and the security difference is significant.
Send Documents Securely