If you are on vacation, you are likely to use a local hotspot for your internet needs. Consider, for example, the Wi-Fi network at the hotel or at the campsite. Or just hook up with the network of your local Starbucks or McDonalds. To view some relevant news sites is not a problem at all. Otherwise, it will be when you retrieve and send mail via a mail client or go home banking. In that case, readers could lie down. For example, poems that offer a hotspot in a busy café from their laptop. Once you link to it, any data you send and receive will be read. Not convenient.
A VPN server is necessary in such a case. VPN stands for Virtual Private Network. The technique originally came from business. Home workers and out-of-door staff can worry-free, through VPN, through a kind of secure tunnel to the corporate network. Strict encryption makes it impossible for third parties to read. In the meantime, there are a number of VPN providers using the same technology. For example, when you sign up with such a provider, you will then connect to your mobile or laptop from one of the computers (servers) of this service. The connection between your device and that server is fully encrypted. You already recommend: even if you connect via the "criminal" hotspot via a VPN connection, reading is no longer an option.
In addition, a VPN service offers another advantage. Most of the time, you can choose from servers in various countries. If you connect to a server in, for example, the Netherlands, you will also be assigned a Dutch IP address. In other words, visited websites via a VPN-linked device do not know better than visiting those from the Netherlands. And that's how it works like a broadcaster, so neat at that sunny Ukrainian campsite. And the livestocks of our native public broadcasters just work again. This is unlike when you use a foreign IP address.
VPN services are available in all types and sizes. The most useful are the services that have an app in your device's appstore ready. After installing the app and signing a subscription (which can also be for a month, for example), you make a connection from the app. Easy and fast. Diehards can also go back with VPN profiles and all kinds of settings. But that is fortunately no obligation. Known names for VPN providers include NordVPN, PureVPN and VPN Unlimited. There are many more issues in your device's appstore. For an overview of the better services, you can read this article in English. Many VPN apps offer the ability to connect automatically in the settings. No bad idea to turn this option on during the vacation. This ensures you always have a secure internet connection. Golden tip finally: On sites like these are regularly making spectacular deals for lifetime VPN subscriptions. For this reason, you will be well informed about the life of the chosen provider.