You can approve by replying on WhatsApp, Telegram, iMessage and in the web app, because those platforms prove who sent the message. On email, use the signed Approve and Skip links under each card, then confirm; replying "yes" never approves. Phone calls (coming soon) will never approve.
| Channel | Approve by reply | Buttons | Why |
|---|---|---|---|
| Web app | Yes | Yes | You're signed in |
| Yes | Yes | WhatsApp gives Cosmo your verified number | |
| Telegram | Yes | Yes | Telegram gives Cosmo your linked chat |
| iMessage | Yes | No | Apple delivers your real sender number. Messages that fall back to SMS are chat only |
| No | Approve and Skip links with a confirm step, valid 14 days | A "From" address can be faked | |
| Phone (coming soon) | No | None | Caller ID can be faked |
Each card in an email brief has its own Approve and Skip links. They're signed links tied to that card and that decision, they open a confirm step before anything happens, and they expire after 14 days. If you reply "yes" to the email, Cosmo reads it as chat and never approves anything.
Phone
Phone calls are coming soon. They'll need a PIN, and a call can never approve a card, because caller ID can be faked. Until then, send Cosmo a voice note on WhatsApp or Telegram, and approve in chat or the app.
Email roy@cosmocmo.com and tell us what you tried. We'll help.