4 ms·
It depends on country to country. The cheapest option is probably sending out OTPs in text messages to their phone and validating that. Verifying someone's phon
by pyeri 3y ago
It depends on country to country. The cheapest option is probably sending out OTPs in text messages to their phone and validating that. Verifying someone's phone number is also a form of KYC though a very low grade one.