Interested reading for curious students:
https://www.mckinsey.com/featured-insights/mckinsey-explainers/what-is-tokenization?stcr=50BA8C05FCF34975BC92334C0D43CC22&cid=other-eml-alt-mip-mck&hlkid=775630681a244271950b4bbd53927c02&hctky=11753155&hdpid=d7c1f95d-1c92-40cf-9f32-155d540ec5a9