1.Enterprise Web proxy servers have few drawbacks, but public services open to anyone are risky. These risks are eliminated if organizations use network control to force users to use only approved proxy servers. Network administrators can use domain control, such as Active Directory, to lock Web browser configurations.
2. Free proxy servers are the biggest risk. The attacker hosts Web proxy servers to trick users into connecting and disclosing sensitive data. The server administrator can use all the traffic that is moved through the Web proxy. If this traffic is not encrypted, it can lead to identity theft or account takeover. Users get an anonymous IP address, but at the expense of having their data logged on a Web proxy server.
3.Privacy is the typical reason for using a Web proxy, but none of the data that uses a server as an intermediary is private. Users should only use free proxy servers with non-sensitive traffic and be aware that attackers may be reading browsing habits. Browsing habits can be used to locate users through other attacks, such as phishing.
4.Most public free web proxy servers do not use encryption. This means that all traffic can be read in clear text on the server and across the Internet. This issue does not pose a threat to insensitive simple browsing and traffic, but users should not connect to a public free web agent when authenticating sites that contain sensitive data, such as bank accounts or e-commerce accounts with stored payment methods.
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