That's business as usual these days. People like to use VPN, fake names, disposable email addresses for signup. Not necessarily fraudulent. Treat it as anonymou

That's business as usual these days. People like to use VPN, fake names, disposable email addresses for signup. Not necessarily fraudulent. Treat it as anonymous user and adjust your business to accommodate those, e.g. free accounts that auto-expire, require credit card or phone verification to unlock all features. You fight a bit by adding captchas, block VPNs but it's an arms race unable to win. My record user created 80 accounts (manual, a student who really liked our free product, took 12 hours) and another created 800 accounts (somewhat automatic).