KYC stands for Know Your Customer.
KYB stands for Know Your Business.
It’s a legal requirement to ensure that neither we, nor you, are breaking any anti-money laundering laws when using our secure account. We check personal ID or business documents that prove you are who you say you are, or that your business is genuine. More information can be found here: https://blog.mangopay.com/learn/what-is-the-meaning-of-kyc-and-kyb