With private messaging down on Oh MiSignal, users on the mobile app and desktop services aren't sure how to communicate securely.

Signal, the encrypted messaging tool from Open Whisper Systems and used by Edward Snowden, was experiencing outages Friday.

Dedicated users were not sure what to do during the outage.

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Snail mail it is.

UPDATE Oct. 27, 12:42 p.m. PT:The company said the service was back up after it “added more capacity to resolve connection errors.”

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UPDATE Nov. 7, 4:40 p.m. PT: Signal contacted Mashableon Nov. 7 to clarify that an email message purportedly sent from the company about the outage was not a company statement. It appears someone pretended to represent Open Whisper Systems and sent fabricated information about the outage. We've removed the fake statement.

Open Whisper Systems only released information through a tweet. The tweet explained, “Signal is back after a brief service interruption. We appreciate your patience as we added more capacity to resolve connection errors.”