Sanitation is the process of mantain secure a user input in your application, because without it, a malicious user can perform some serious attacks to exploit this input field, as bufferoverflow a vulnerability that allows a attacker perform a controlled segfault taking the control of some registers of the cpu of the server allowing to add code to the memory that will be excuted arbitrarily, others attacks taking advantage of a poor sanitation in the input field could be sql inyections and xss (cross site scripting) so keep yours inputs field controlled and sanitated.
A VPN, or Virtual Private Network, is a technology that allows users to securely connect to the Internet over an untrusted network, such as a public Wi-Fi network. When a user connects to a VPN, the VPN server creates a secure, encrypted tunnel between the user's device and the VPN server. All data transmitted between the user's device and the VPN server is encrypted and protected from unauthorized access or interception. This allows users to securely access sensitive information, such as financial transactions or confidential business data, even when using a public Wi-Fi network or other unsecured network. VPNs are also useful for users who want to access content that is restricted by geographic location, such as streaming services or websites that are only available in certain countries. VPNs are typically used by individuals, businesses, and government organizations to protect their online privacy and security. There are many different types of VPNs, including remote-acces...
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