I had the same issue when I was about to make payment today. The cc I have been using can no longer be used now. So Alipay is the only paying option. It requires personal details to verify, right ? Never used Alipay as I don't feel safe to provide so much information for identification, but if I want to continue to use Taobao, I have no choice.
Just asking, you guys having any concern using Alipay?