04/09/2026
A whole office of your customers just failed your fraud check. Their company sends every employee out through one shared IP, your system saw all that traffic stacking up behind a single address, and treated it like a proxy.
This is the false positive almost nobody plans for. An office network, a company VPN, or a modern security gateway puts hundreds of real people behind one exit IP. To a fraud tool built to spot masked traffic, that looks suspicious: too many users on one address, patterns that resemble a proxy. So it blocks or challenges them, and the people caught in it are often your most valuable customers, a whole company of legitimate business users, stopped at login or checkout.
And it costs more than the annoyance. You get support tickets from the exact accounts you want to keep, you lose sales from buyers who were ready, and your fraud team spends hours digging into what turns out to be a big company's head office.
The IP Security API can now tell when an IP is a corporate gateway, the shared exit a company routes its staff through, along with the kind of gateway and who operates it. Used as context rather than a final verdict, it lets your system treat a busy corporate address as normal shared infrastructure instead of a proxy.
Worth being honest about one thing: this is a context signal, not an automatic green light. A hacked account can still sit behind a corporate gateway, so it should inform your decision, not make it for you.
See how it works: https://ipgeolocation.io/ip-security-api.html