Bottom line: VPN technology protects only on the transmission path against man-in-the-middle attacks, not against malware, phishing, or modern tracking—and concentrates trust rather than eliminating it.
VPN services do not offer all-around protection against internet threats; they merely shift the trust from the ISP to the VPN operator. In the IT security professional community, the actual limitations of this technology are increasingly assessed more critically than marketing promises suggest.
A VPN encrypts the data connection between end device and VPN endpoint, thereby protecting against man-in-the-middle attacks on insecure networks such as public Wi-Fi. However, once data leaves the VPN endpoint, this protection ends. The technology offers no protection against malware, trojans, viruses, or phishing attacks—if a user downloads a compromised file or logs into a fake website, VPN mechanisms do not apply.
From a privacy perspective, a common misconception prevails: a VPN does not automatically maximize anonymity. Instead, it shifts control of network traffic from the internet service provider to the VPN provider, who always knows the user’s real IP address. The user must trust that the VPN operator adheres to no-logs policies and does not log or share data. Modern tracking methods such as browser fingerprinting and active user accounts also function largely independently of the IP address.
A significant architectural risk lies in the concentration of all network traffic on a single central node—a so-called single point of failure. If the internal infrastructure of a VPN provider is compromised, the data streams of thousands of users lie exposed simultaneously. Free VPN services pose additional risks, as they often finance themselves by selling anonymized user data to data brokers, thereby undermining their own security promise.
Source: www.it-daily.net · Published June 20, 2026
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