The job at signup is simple to state and hard to do: tell a device that already took a trial from a genuinely new customer, before the account is created. cside does it by recognising the device rather than the email, so a fresh address, a cleared cookie, or a VPN does not reset the count. It reads 250+ per-session signals as the page loads and returns a verdict your backend can act on to allow, review, or block. The check is passive, no CAPTCHA and no extra fields, so real first-time signups never feel it.
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 subscription businesses detect password and account sharing?
cside fingerprints each device on an account and flags when the number and pattern of devices indicates sharing, with no cookies and no login friction.
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.