"But for the truly paranoid (or the criminally inclined) there are ways to surf the web anonymously. The Anonymizer service will act as a proxy between you and your ISP, and they claim that your information cannot be subpoenaed because they do not store it."
Proxy servers can be a threat to a normal user. It has been found that many proxy servers are operated by black-hat hackers and they sniff the information which gets through it thus confidentiality is compromised. Also proxy servers are extensively used in DoS,DDoS,DRoS attacks.
Be prudent before using Proxy Servers
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