Why use PasteOnce for Share Tax ID Numbers?
Sending sensitive data like share tax id numbers via email, Slack, or text messages creates a permanent record. If your account is compromised months or years later, hackers can search your message history and find this sensitive data.
Using a self-destructing link ensures that once the recipient views the information, it is gone forever. There's no record on our servers, and the decryption key (stored in the URL hash) never touches our infrastructure.
How does share tax id numbers work?
Client-Side Encryption
Your sensitive data is encrypted in your browser using AES encryption. The encryption key is generated randomly and never sent to our servers.
Secure Storage
Only the encrypted blob is stored in our database, with an automatic expiration time. We literally cannot read your data.
One-Time Read
When your recipient opens the link, the encrypted data is fetched and immediately deleted from our servers. The key in the URL hash decrypts the message in their browser.
Security Best Practices
Use a different channel
If you normally communicate via Slack, send the secure link via SMS or email. This adds an extra layer of security.
Set appropriate expiration
Choose the shortest expiration time that makes sense for your use case.
Verify the recipient
Make sure you're sending the link to the correct person before sharing.