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Secure Messenger encrypted SMS

Secure Messenger encrypted SMS

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App Description

The following description comes from the Google Play Store description of the app:

Secure Messenger from Chiral Software allows users to send and receive secure text messages over ordinary SMS / MMS. Messages are secured with military-grade 2048-bit public key encryption. Works with any supported phone and any carrier. Messages are secure and cannot be read by carriers, by us, or by any other party. You do not need data service on your phone; only SMS / MMS capabilities are needed.

This app can fully replace the stock/default Android Messaging app as it will also handle regular (non-secure) SMS/MMS messages.

Users interested additional protection may upgrade to a hardware-based key management system available from Chiral Software. We offer a free training session in how to use the app. Please contact us at training_ar@chiralsoftware.com to register.

About Chiral Software, Inc.
We're a small but ambitious cybersecurity R&D lab based in Beverly Hills, California. Secure Messenger is our first app released to the public, however we've already done extensive mobile application and cybersecurity R&D work for government customers like the US Department of Defense.

We take your privacy seriously, simply put: we don't store, track or use any of your information (including your text messages) beyond whatever Google Play (Android Market) does by default. See Google's Privacy Policy for more details: http://www.google.com/policies/privacy/

INSTRUCTIONS

Both sender and receiver must have Secure Messenger installed.

Step 1: Both users generate keys

Step 2: The two users exchange their keys and save them

Step 3: The users will now be able to communicate securely

Note about PRISM: You may have heard about PRISM, the massive NSA program that monitors and collects all mobile communications in the US, including SMS. Chiral Software's Secure Messenger protects your communications against snooping by PRISM.
Sensitive Permissions Used By This App
Permission What Why
Send sms messages Can send SMS messages Internal
Full network access Can access the internet It appears this app uses this data for internal use within the app's functionality
Read phone status and identity Can read phone's current state information like in-phone call, phone signal, carrier, device ID, and phone number Internal
Change network connectivity Allows applications to change network connectivity state. It appears this app uses this data for internal use within the app's functionality
Read your contacts Can read user's contact list (phone book) and phone call history Internal
Receive text messages (mms) Allows an application to monitor incoming MMS messages. Not analyzed yet
Read your text messages (sms or mms) Can read SMS messages Not analyzed yet
Read your own contact card Allows the app to read personal profile information stored on your device, such as your name and contact information. This means the app can identify you and may send your profile information to others. Not analyzed yet
Read call log Can read your device’s call log, including incoming and outgoing calls Not analyzed yet
Find accounts on the device Can use user's account information stored on the phone Not analyzed yet
Edit your text messages (sms or mms) Allows the app to write to SMS messages stored on your tablet or SIM card. Malicious apps may delete your messages. Not analyzed yet
Take pictures and videos Can use camera or flashlight on the phone Not analyzed yet
Modify your own contact card Allows the app to change or add to personal profile information stored on your device, such as your name and contact information. This means the app can identify you and may send your profile information to others. Not analyzed yet
Modify or delete the contents of your usb storage Can write to your phone's USB storage Not analyzed yet
Modify your contacts Can edit contacts on device Not analyzed yet
Receive text messages (sms) Can receive SMS messages Not analyzed yet

Privacy Analysis

Version of the app analyzed:

1.0.10

App was last analyzed by Privacy Grade on:

03/03/2017

Why does this app have this grade?

Our method for grading apps uses a privacy model that we built. This model is based on crowdsourced surveys that we conducted to capture people’s expectations and comfort levels with various app behaviors.

You can see more information about how we grade apps in our FAQ.

See the sensitive permissions table below the app description to see the permissions that made users of the app uncomfortable.

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