Security and Privacy Basics for VPN & Proxy Clients
Covers official downloads, subscription privacy, permissions, certificates, logs and minimal configuration.
Download sources
Prefer official project pages, Releases and app stores.
Subscription privacy
Never publish subscription URLs; redact sensitive fields in screenshots.
Permissions
Enable only the permissions required for the task and understand why TUN or network-extension permissions are needed.
Certificates and MitM
HTTPS interception/decryption increases privacy risk and should only be used when necessary and understood.
Minimal configuration
If defaults work, do not change multiple advanced settings at once.
Keep it reproducible
Change one network setting at a time and test after each change.