# Abuse prevention

Use Stripe Radar to detect and prevent abuse across your users lifecycle.

Stripe Radar provides abuse prevention APIs that let you detect and act on suspicious behavior before it impacts your revenue. This is useful whether you need to prevent against abuse when your customer creates an account or logs in, or between billing cycles.

[Customer abuse evaluation](https://docs.stripe.com/radar/customer-abuse.md): Detect multi-accounting and account sharing abuse at signup and login, before payment is collected. Get risk scores upfunnel to block bad actors earlier in your workflow.

[Free trial abuse prevention](https://docs.stripe.com/radar/free-trial-abuse.md): Detect customers likely to abuse free trials by collecting a payment method at the start of a trial. You can block high-risk trials before they convert to subscriptions.

[Pay-as-you-go abuse evaluation](https://docs.stripe.com/radar/non-payment-abuse.md): Identify subscription customers unlikely to pay their next invoice before a billing cycle ends. You can limit usage, issue an early invoice, or flag accounts for review mid-cycle.