这个很可能火星，算是科普下。个人觉得思路很对，且易于实现效果。
What is LSP?
The Lightweight Portable Security distribution was created bythe Software Protection Initiative under the direction of the AirForce Research Laboratory and the US Department Of Defense. Theidea behind it is that government workers can use a CDROM or USBstick to boot into a tamper proof, pristine desktop when usinginsecure computers such as those available in hotels or a worker'sown home. The environment that it offers should be largelyresistant to Internet-borne security threats such as viruses andspyware, particularly when launched from read-only media such as aCDROM. The LPS system does not mount the hard drive of the hostmachine, so no trace of work activity can be written to the localcomputer.
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