Quick Answer

To send sensitive information safely online: use end-to-end encrypted tools, avoid email for anything confidential, prefer one-time delivery methods that auto-delete after reading, and never send sensitive text via unencrypted channels like SMS or standard email.

What Makes Information "Sensitive"?

Sensitive information is anything that could cause harm if it fell into the wrong hands or ended up in the wrong place. This includes account access details, personal identification numbers, private business information, medical details, financial data, and private personal communications.

The bar is lower than most people think. Even a home address sent to a stranger, a temporary access code shared in a chat, or a confidential work note forwarded by email can be sensitive โ€” because any of these could persist in logs, inboxes, or chat histories long after their usefulness has passed.

Why Email Is Not Safe for Sensitive Information

Email is the most common way people send sensitive information โ€” and one of the least appropriate. Standard email is not end-to-end encrypted. Your email provider can read your messages. Messages sit in sent folders, inboxes, and server backups indefinitely. If either party's email account is compromised, all historical messages are exposed.

โš  Never send truly sensitive information via standard email. Even "secure" corporate email systems are not end-to-end encrypted by default โ€” messages are accessible to IT administrators and email providers.

The Safest Methods for Sending Sensitive Text

1. End-to-end encrypted messaging (Signal) โ€” Signal is the gold standard for private messaging. Messages are end-to-end encrypted, the company cannot read them, and you can set messages to auto-delete after a set period. It requires both parties to have the app installed.

2. One-time encrypted transfer (PingPaste) โ€” For situations where you need to send sensitive text once without leaving any trail, PingPaste is purpose-built for this. Text is encrypted in your browser with AES-256-GCM before it reaches the server. The recipient retrieves it using a 6-digit code, and it is permanently deleted immediately after. No account, no history, no trace.

3. Encrypted email (ProtonMail) โ€” ProtonMail offers end-to-end encrypted email between ProtonMail users. If both sender and recipient use ProtonMail, messages cannot be read by anyone else. It is a good option for longer or more formal sensitive communications.

4. Encrypted messaging apps (WhatsApp) โ€” WhatsApp is end-to-end encrypted for message content, though metadata (who messaged whom, when) is accessible to Meta. It is significantly better than standard SMS or unencrypted email, though not as private as Signal.

Golden Rules for Sending Sensitive Information Online

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Always use encryption
If the tool doesn't mention encryption, assume your data is readable by the provider.
๐Ÿ—‘๏ธ
Prefer auto-delete
Tools that delete data after delivery leave no window for future exposure.
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Avoid email chains
Sensitive information forwarded in email threads multiplies exposure with every forward.
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Never use SMS
SMS is unencrypted and stored by mobile carriers. It is the least secure option available.

How to Send Sensitive Text With No Trace at All

If you need to send something sensitive and want it to leave absolutely no record โ€” no chat history, no email thread, no server log of the plaintext โ€” the cleanest option available is PingPaste:

  1. Open pingpaste.com โ€” no account needed
  2. Paste your sensitive text into the Send tab
  3. Click Encrypt & Generate Code
  4. Share the 6-digit code with the recipient via any channel
  5. They enter the code, receive the text, and it is deleted immediately

What this means in practice: the server never held your plaintext. The recipient's browser decrypted it locally. There is nothing left on any server to expose, subpoena, or breach. The transfer simply does not exist anymore.

What to Avoid

  • Standard email for anything more sensitive than a meeting request
  • SMS for any kind of access details or private information
  • Screenshot sharing โ€” images get backed up to cloud services automatically
  • Unencrypted note-sharing apps or basic pastebin tools
  • Messaging apps where you are not certain encryption is enabled

Send sensitive text with zero trace

AES-256 encrypted. Deleted on receipt. No account needed.

Try PingPaste Free โ†’