Raspberry Pi
Create a public wifi access point with Raspberry Pi
Create a public wifi access point with Rasberry Pie, secured, and isolated from your network (and accessible with guest login and password).
How do I know my email / phone have been compromised ?
How do I know my email / phone number is part of data leak and have been compromised ? And what should I do ?
Geolocation
Turn off geolocation on browsers, to protect your privacy
Turn off geolocation on your browser, to avoid tracking from ISP, web sites and governments: Firefox, Opera, Chrome, Edge...
Raspberry Pi
How to share a USB printer in WiFi with a Raspberry Pi?
Share and print in WiFi on a USB printer (HP, Samsung, Epson...) thanks to a Raspberry Pi with Cups and Samba.
Geolocation
Turn off geolocation on Android, to protect your privacy
Turn off geolocation on Android, to avoid tracking from telecommunications companies, smartphone manufacturers and governments
iPhone
25 tips to secure your iPhone (2021)
Be paranoid on your iPhone. Defend yourself against thief, trackers and hackers by tuning safe setups and using security tweaks.