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Using untrusted proxies can pose significant security concerns to your online confidence. A third-party proxy server reroutes your web requests through its server before connecting to the destination server, but when this proxy server is hacked, it can intercept and misuse your private data.

Some of the most concerning concerns associated with using untrusted proxies include:

1. Unsecured Data Transmission: When you use a proxy server, your internet requests travel through the proxy before reaching the destination server. Unsecured proxies may not shield these requests, exposing your personal and financial data, such as bank account details. Hackers can intercept your data and exploit it for malicious purposes.
   
   
2. DNS Spoofing: A malicious proxy server can manipulate domain name system (DNS) queries, redirecting them to fake websites or servers controlled by the hacker. This allows the attacker to inject malware, confiscate sensitive information, or expropriate sensitive information from unsuspecting users.
   
   
3. Tampering with HTTP Cookies: Many websites use HTTP cookies to authenticate and identify users. An unsecured proxy server may be able to intercept and tamper with these cookies, which can result in identity fraud or unauthorized access to confidential data.
   
   
4. Man-in-the-Middle Attacks (MitM): In a classic MitM attack, an attacker intercepts and manipulates the communication between a user and a website or network. Proxy servers can facilitate these attacks by providing the attacker with an entry point to introduce malicious code or telegram下装 confiscate sensitive information.
   
   
5. Other Risks: Using untrusted proxies can also lead to content filtering of your browsing activities without your knowledge.
   
   

To avoid these dangers, it is crucial to use trusted proxy servers or virtual private networks (VPNs) that employ robust security protocols. Always verify the online reviews and ratings of a proxy provider before signing up, and be cautious of proxies that are low-cost or guarantee unusually high bandwidths. If you're undecided about the security of a proxy, it's best to refrain using it altogether.