What is a Proxy Server? How They Work + Security Risks | UpGuard

This document is an educational guide on proxy servers that explains their operation, categorizes multiple proxy types (forward, reverse, anonymous, HTTP/HTTPS/SOCKS, DNS/SMTP/FTP proxies, etc.), outlines benefits (anonymity, filtering, caching, geo-location control), details security risks (lack of encryption, data logging, limited privacy, speed issues), and provides basic setup guidance and FAQs.