Hi all... I am in the work of developing an e-commerce website. This is the first time I am working for an e-commerce site. I possess a lot of concerns about user security, especially about user logins. When I have discussed this with one of my friends working in the cyber consulting services NCI, he suggested me different options such as SFA, 1FA, 2FA. But I am still in dilemma in choosing the right. Which one would be good for an e-commerce website? Is this can be done by ourselves? Please do reply.