Big Brother may wish to steal your personal data and spy on you - don't worry. With Ubuntu Touch they will have nothing to see!
Ubuntu is not only the most popular GNU/Linux distribution and the overall third most deployed desktop operating system, it's also commonly used for critical infrastructure like servers and IoT. Since it's open-source, every user has access to the source code and can help find and remove security vulnerabilities.
Ubuntu Touch is not operated by a for-profit company that collects and sells your data. The UBports Foundation that is currently being created under German law will be is a registered non-profit and it's focus on the public interest will be monitored by the foundation supervisory authority.
Compute like no one is watching - because now they can't!