远程服务器信息生成缓存安全不？解决思路
远程服务器信息生成缓存安全不？
我是php开发小白，最近拿着一个cms开源程序在试着做一个用api接口控制远程vps服务器，由于用api接口连接起来控制发现，等待时间较长才刷出信息，如果同时有几个用户都在刷新api接口连接，我怕反应不过来，太慢受影响。
所以考虑到缓存的方式 ，当有更新时，把远程vps服务器的信息生成一个缓存文件，缓存这个方式是实现，速度就不用说了。
现在有一个问题，生成缓存后 用户的目录信息，用户名，密码等等都在里面，这样会不会很不安全，有什么其它办法和建议？
------解决方案--------------------
用户名，密码等加了密之后再缓存嘛
------解决方案--------------------
考虑一下session？
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