Deep Cover Support

Deep Cover hides text messages inside ordinary photos, on your device.

Contact: matt@miller-media.com. We usually reply within a few days.

Privacy policy: millermedia.io/deepcover/privacy

Frequently asked questions

My friend couldn't find the message in the photo I sent. Why?

Hidden messages live in the exact pixels of the photo. Send it by AirDrop, iMessage, email attachment, or "Send as File" in WhatsApp or Telegram. Apps that recompress photos, such as Instagram, Facebook, X, MMS, or WhatsApp and Telegram in photo mode, usually wipe the message. Cropping, filters, edits and screenshots destroy it too.

If Deep Cover says a message "looks damaged", the photo was probably recompressed on the way. Ask the sender to resend it as a file or by AirDrop.

I forgot my passphrase. Can you recover the message?

No. The passphrase is never stored anywhere, and we have no copy of your messages, so nobody can recover a message whose passphrase is lost.

Is a message without a passphrase private?

It is hidden, not locked. The photo looks unchanged, but anyone with a steganography tool could find a message that has no passphrase. Add a passphrase to protect it with AES-256-GCM encryption.

Does Deep Cover upload my photos?

No. Deep Cover makes no network connections. Photos and messages leave your device only when you share them yourself.

Which devices are supported?

iPhone and iPad with iOS 16 or later.