Security Advisory

SMS Security Advisory: Public Sms Risks

Crucial privacy and security explanation regarding public-sms-risks.

Critical Risks of Public Shared SMS Numbers

Public temporary numbers are designed exclusively for developer testing, disposable account signup verification, and spam prevention on low-trust platforms. They provide zero cryptographic encryption and zero personal confidentiality.

Strict Restrictions — Never Use Public Inboxes For:

Banking, credit union, or financial account multi-factor authentication (MFA)
Primary email account recovery (Gmail, Outlook, iCloud, Proton)
Healthcare portals, pharmacy orders, or medical communication
Cryptocurrency wallets, exchange 2FA, or custodial account access

Any third party viewing this page can read the same incoming one-time passcode. If another user initiates an account recovery or password reset using the same public number, your session may be compromised.

Recommended Enterprise Practice: For automated regression suites, continuous integration testing, or private verification flows, use our Developer Sandbox with dedicated private virtual lines and synthetic event injection.