Which VPN is the safest and free?

I'm curious to know which VPN service is considered the safest and also offers a free plan. With the increasing concerns about online privacy and security, it's important to choose a reliable VPN that can protect my data and browsing activities. Can you suggest a VPN that ticks both boxes of being secure and free to use? It would be great if you could provide some insight into the features and security protocols that make it stand out as a top choice.