By using a VPN, you can alter your IP address and encrypt your communication with the internet, making it impossible for others to see the data you transmit and receive. However, hackers may install malicious software, like keyloggers or spyware, on your devices. Moreover, sharing a lot of personal information online and using the same username for multiple accounts may make it easy for someone skilled at Googling to gather your private information.

A VPN is an added layer of security to safeguard your internet traffic, but it's not a perfect solution. You should take further measures to secure your online safety.

In most countries and regions, using a VPN is legal. However, some countries and areas have strict VPN regulations or even prohibit VPN usage altogether, especially totalitarian regimes like China, North Korea, and Russia. In these countries, people use VPNs to circumvent government censorship and gain internet access. Nevertheless, if caught, you could face significant fines. If you intend to use a VPN in such countries, it's best to download and subscribe to the service before your visit.

While some software can provide similar functionality to a VPN, they cannot replace it entirely. A competent DNS can help you access blocked websites and online services, but it doesn't encrypt your traffic. Using Tor protects your privacy, but it may make many websites inaccessible.

Therefore, if you seek a service that provides privacy protection, a new IP address, and encrypted data, it's advisable to choose a reliable VPN service provider. However, be cautious when selecting a VPN service provider. Free VPNs often track users' online activity, collect and sell their data, and may not be secure. Sometimes, these VPNs even contain malware that can threaten your network. For your privacy and security, it's safer to choose a reputable paid VPN provider.