微信绑定的银行卡号是自己添加的，它具有唯一性的特点，为了保护用户的隐私，银行卡号码只显示了后四位，根据后四位就能确定它具体是哪一张了。
查看微信绑定的银行卡号后四位的步骤如下：
1、登录自己的微信，点击【我】，然后点击如图所示的【钱包】.
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2、跟着点击打开页面中的【银行卡】选项.
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3、绑定的银行卡号后四位如图所示。
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