Similarly, Tor is free software that defends you against Internet surveillance that threatens personal and privacy. Short for "The Onion Router" — which gets its name for its "layered" approach to the encryption process — Tor (torproject.org) provides online anonymity as the software routes Internet traffic through a worldwide volunteer network of servers to conceal your location or online usage patterns.
USB STICKS
In some cases, software to encrypt your connection is kept on a USB drive — so you can remain safe and secure even when using a public PC.
SurfEasy Private Browser ($69.99 one-time fee; surfeasy.com) is a tiny USB key that fits into a credit card-shaped case to be kept in your wallet. When you plug it into a PC or Mac — be it your own computer or a public one — it instantly launches its own password-protected browser and you're good to go (no proxy or network settings to configure).
Your browsing session is handled through SurfEasy's fast and secure private proxy network. Your IP address will be masked throughout the session.
The company also has a new downloadable product called SurfEasy VPN that can protect computers, smartphones and tablets.
Also consider Tails (tails.boum.org), which can be downloaded and installed onto a USB stick to run independently of the computer's original operating system. Like SurfEasy, it lets you browse the Web anonymously — on virtually any computer — as all connections are channeled through the aforementioned Tor network.
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不过检验应该抽检才是
这好比日本车与纯国产车
你这不是富起来了么