VPN Detection Without Blocking Legitimate Travelers
VPN and proxy detection is a REVIEW signal. Combine it with device history and login velocity instead of declining every privacy-conscious customer.
VPN detection estimates whether an event IP sits on a known VPN, proxy, or hosting range. It is useful. It is also loud. Corporate exit nodes, campus networks, and travelers will look “risky.” A blanket BLOCK on VPN is how you train good customers to call support.
Write the rule as a combination: VPN **and** new device **and** failed-login velocity is stuffing. VPN **and** a known-good device on a quiet account is often travel. List IPs after confirmed abuse, not after a single enrichment flag.
IP is not the whole session
Attackers rotate addresses. Device fingerprints persist. See device intelligence vs IP-only. Naiza product copy includes IP geolocation and VPN detection on events—confirm fields in the docs.
Read VPN detection, IP reputation, and credential stuffing. AML screening still uses the legal name on watchlists; a VPN session is not a sanctions result.