By spotting that one account is used from many distinct devices in ways a single household would not. cside draws on 250+ browser, device, and network signals to fingerprint each device on the account, and flags when the number and pattern of devices indicates sharing, without cookies or added login friction.
How do fraud teams stop account takeover before the login completes?
cside scores the device and session the moment credentials are submitted, returning a risk signal before the login is accepted.
What is multi-accounting fraud and how do you detect it?
Multi-accounting is one person or ring creating many accounts to abuse bonuses and trials. cside links accounts to the same device via 250+ cookieless signals.
How do you stop free trial abuse without hurting real signups?
The key is telling a repeat device from a genuinely new customer at signup. cside recognises devices that already took a trial and flags only those.
Why does email verification fail to stop fake account creation?
Email verification only proves someone controls an inbox. cside closes the gap by recognising the repeated device behind bulk signups.