Never buy “ready private phones” or devices with preinstalled “privacy” software. If you want a phone with strong privacy protections, install GrapheneOS on a Google Pixel.
Most phone operating systems on standard hardware (stock Android, iOS) are vulnerable to tools like Cellebrite and other forensic/remote attacks. GrapheneOS is significantly more secure.
Many mobile apps depend on Google Play Services, which includes features that undermine privacy. microG is an open-source reimplementation that lets some apps run on a de‑googled device, but it is not compatible with all apps.
Using two devices is recommended: one for everyday activities (social accounts, general browsing) and a second, locked‑down device for sensitive tasks. Some apps collect extensive logs and metadata even when they claim to be private.
Strong end‑to‑end encrypted messaging apps to consider:
- SimpleX (strong privacy features)
- Session Messenger
- Signal (easiest transition for WhatsApp users)
- Briar
These messengers offer desktop/multi‑platform support. Note that apps claiming to be “encrypted” may still expose file uploads, images, voice notes, reactions, login times, profile info, and other metadata. Prefer apps that are open source so their privacy claims can be audited.
Standard SMS/phone services should always be considered compromised. Carriers inherently track devices on their networks. Authorities can use intercepting or fake cell towers to locate phones associated with events (for example, protests) because phones automatically connect. The only way to avoid carrier tracking entirely is to avoid using cellular networks.
If you need live communication in a sensitive environment, consider alternatives that bypass mobile carriers—for example, mesh networks like Meshtastic. These protocols let devices communicate directly without relying on cellular infrastructure, making them a safer choice than standard phone networks in high‑risk situations.
For step‑by‑step guides on setting up a secure mobile OS, see the Techlore channel—he has many practical videos for users new to these topics.