The Complete SimpleX Chat Hardening Guide (2025–2026)
SimpleX is the only messenger with no user IDs at all. Here's how to harden it — profiles, relays, Tor, and self-hosting — for real metadata privacy.
Topic
Metadata
A collection of 6 issues
Call Detail Records (CDRs)
Nobody has to listen to the call. The number dialed, the second it started, and the tower that carried it are enough to reconstruct where you were standing and who you keep coming back to.
UTS Expanded: Netflow and Logistics
Expanding UTS: An In-Depth Look at Net Flow and Logistics Vectors reveals the growing reach of UTS across global communications and commerce. It explores how Net Flow Surveillance and Supply Chain Monitoring expose vulnerabilities, impact privacy, and shape international stability.
Digital Footprint
A record of the sites you opened, the mail you sent, and the devices in your pocket is enough to reconstruct where you were and what you cared about. Most of it accumulates with no deliberate act on your part.
Remove Stored Wi-Fi (Android)
Your phone calls out for every network it has ever joined, by name, all day, to anyone listening nearby. The fix is tedious rather than difficult: forget them one at a time.
Browser Fingerprinting
Delete every cookie you own and the site still recognizes you. Time zone, screen, browser settings and the versions of software you happen to run add up to something close enough to a name.