OS and VPNs are entirely two different things. The OS is an operating system like windows and Linux which operates functions of hardware through its programming. Whereas the VPN is a Virtual private network, which is used to hide your IP on the internet so no one can track you and no one can access your data.VPN also offers multiple servers IP's, so you can access the internet from another country too. These are the benefits of VPN which make you safe from getting hacked.
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