(CNBC) — The so-called dark web, a portion of the hidden internet, is usually associated with a host of illegal activities including the buying and selling of drugs, firearms, stolen financial data and other types of valuable information. The selling point? Total anonymity.

That may sound nefarious, but some experts argue that the dark web is also useful in circumventing internet censorship.

While most people spend their time online on what is known as the surface web — the portion of the World Wide Web that can be accessed with standard browsers and search engines — it has become relatively easy for anyone to access the dark web.

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