General good advice for freedom and privacy/security
Some general good advice to ensure the best possible respect of freedom and privacy/security on mobile devices includes:
Installing only free software applications, from trusted sources such as #F-Droid
the device's storage, to prevent some unauthorized access to the device's data.
Using software that provides secure peer-to-peer-encrypted communications such as #ChatSecure
for instant messaging and #AGP
with K-9 Mail for emails on Replicant.
to achieve reliable anonymity, for instance with #Orbot
If the device is telephony-enabled, switching the modem to airplane mode or (when possible) turning it off when not in use, to avoid being tracked at all times.
Browsers using the webview framework (such as the browser shipped with Replicant and Lightning) are subject to various security flaws in Replicant 4.2.
In addition, the #FreeSoftwareFoundation
provides a comprehensive guide to help protect freedom and privacy
and the Tor project an article entitled Mission Impossible: Hardening Android for Security and Privacy