Why is Ma Yun called Alibaba?

At that time, I just started a business, worked as a translation website and electronic yellow pages, and finally failed. I didn't know what to do, so I named myself "Alibaba". I also went to the local restaurant to ask the waiter if he knew Alibaba. The waiter said "open sesame" at that time, so he decided to use this well-known e-commerce name. He also extended the story of open sesame, saying that Alibaba discovered a gold mine after open sesame, and he sent people to the cave to look for gold. He only paid a little from the miners. I heard that this domain name was registered at that time and was bought with money.