Protect PDFs Before Email | Rune

Email is not secure. Unencrypted attachments can be intercepted, accessed by email providers, or forwarded without your knowledge.

Why Email Isn't Secure

Transit Vulnerabilities

• Emails can be intercepted during transmission.
• Not all email providers use end-to-end encryption.
• Messages pass through multiple servers.

Storage Risks

• Emails are stored on servers (yours and recipient's).
• Server breaches expose attachments.
• Deleted emails may be recoverable.

Forwarding Issues

• Recipients can forward without your knowledge.
• Attachments travel with forwarded emails.
• No control after sending.

How Protection Helps

Password-protected PDFs add a layer of security:

• Even if intercepted, content is encrypted.
• Requires password to open.
• Adds barrier to unauthorized access.

Protected PDF Workflow

1. Prepare your PDF with sensitive content.
2. Protect with Rune's Protect PDF.
3. Email the protected PDF.
4. Send password via different channel (text, call, secure messaging).
5. Recipient opens with password.

Documents to Always Protect

• Tax documents
• Medical records
• Financial statements
• Legal agreements
• Employment records
• Contracts with sensitive terms

Password Delivery Options

Method	Security Level
Same email	❌ Poor
Separate email	Moderate
Text message	Good
Phone call	Very Good
Secure messaging (Signal)	Excellent

Common Mistakes

• ❌ Sending password in the same email
• ❌ Using weak, guessable passwords
• ❌ Sending unprotected sensitive documents
• ❌ Assuming email is private

Best Practices

• ✅ Always protect sensitive PDFs
• ✅ Use strong, unique passwords
• ✅ Communicate passwords separately
• ✅ Confirm recipient received and accessed

Conclusion

Email security starts with protecting attachments. Use Rune's Protect PDF before sending any sensitive document.