Scrambl3’s next generation privacy, security and hassle-free anonymous signups disrupt the 3.5 billion user mobile voice and messaging market


Free Scrambl3 App Offers Greater Privacy Than

WhatsApp, Signal and Messenger for Free Mobile Calls and Texts


Only Scrambl3 is totally private, and has an ultra-fast anonymous signup that does not use your cellphone number, nor does it access your personal phone contacts (WhatsApp, Signal and Messenger do)


Use your WiFi only iPad or Android tablet (coming soon) to make private calls and send messages – WhatsApp, Signal and Messenger can’t – they rely on your mobile number for making and receiving calls and texts

Scrambl3’s unique Virtual Private Network (VPN) design avoids the well-known public telephone system SS7 security flaw that allows hackers to listen to your calls and read your texts


There is no sign-up with Scrambl3: Just download the app, create an anonymous Scrambl3 username and start making free calls and sending messages to Scrambl3 friends and business associates anywhere in the world where there are WiFi or mobile data connections


Easily switch between your iOS or Android (coming soon) mobile devices-- because Scrambl3 does not identify you by your cellphone number, just your anonymous Scrambl3 username


For complete transparency, Scrambl3 employs only open source software components

to create the Top Secret-grade encryption for your private mobile network



IRVINE, Calif. – February 2, 2017 – USMobile, Inc. (, a developer of private mobile communication networks, today introduced a new version of Scrambl3 ( This free mobile App for iOS and Android (coming soon on Play Store) enables consumers, businesses and government users to make the world’s most private and secure calls and messages. Download it now at the App Store and begin making the world’s most private calls and texts.

Ultimate Personal Privacy:  5 second anonymous signup and Black Book contact listing

New Scrambl3 users only provide a username and password. Other free voice and messaging apps require that you verify your cellphone number and request continuous access to your private cellphone contacts, which are a hassle and a violation of your personal privacy.

Scrambl3 users privately exchange usernames and add them to their respective Scrambl3 Black Book contact listing. No unwanted calls or messages are possible on your private mobile network.

What makes Scrambl3 more private and secure than WhatsApp, Signal and Messenger?

A 60 Minutes segment on CBS News with U.S. Congressman Ted Lieu exposed how hackers can easily listen to mobile calls because of the inherently flawed Switching System 7 (SS7) that is an integral part of the global public telephone system and most voice & messaging apps.

 “Only Scrambl3 creates a ‘Dark Internet Tunnel’ – USMobile’s Top Secret-grade Virtual Private Network (VPN), completely outside of and separate from the public telephone system. In this unique way, communication is ‘cloaked’ or made invisible to those who wish to intercept it,” said USMobile CEO, Jon Hanour.

“By placing the encrypted communication inside a Top Secret-grade VPN, an exponential increase in privacy is achieved, so hackers are effectively shut out,” USMobile CTO Brad Arant said.

Enterprise and Government Best Practices for securing data transmission over the Internet require a highly secure VPN tunnel. Scrambl3’s VPN tunnel architecture enables its users to extend this Best Practice to secure their voice and messaging.

In an independent assessment of Scrambl3, Professor Dr. Yuliang Zheng, one of the world’s foremost cryptologists at the University of Alabama, said:

"USMobile's Scrambl3 has implemented the most salient security features of NSA's ‘Fishbowl’ (secure phone) initiative [designed to protect U.S. Government top secret classified communication] for secure Voice over Internet Protocol (VoIP) architecture, and has a number of unique characteristics that put it in a class ahead of existing commercial secure VoIP techniques." (see Dr. Zheng’s Analysis).



* WhatsApp, Signal, Messenger and all other available voice and messaging apps


Scrambl3 background

USMobile’s engineering staff previously collaborated with the U.S. Government on this next generation secure mobile platform which is designed to protect Government Top Secret-level classified mobile communications. Scrambl3 is the world’s only commercial implementation of this architecture.

About USMobile

USMobile is an Irvine, Calif.-based Company founded by Hanour and Arant with the mission to provide the highest level of mobile communications privacy and security for Enterprises, Government and Individuals.  “Soon, people will say ‘Scrambl3 me!’ when they want to call or text someone with total privacy,” Hanour said.


Media Contact:

Pete Arnold at Peter Arnold Associates 781.248.3600  @petearnold