VPN, ad blocker, and DNS in Israel: what really protects your phone and computer — and what no service can do

The phone connected to Wi-Fi at the airport. On the website, a banner covers half the screen, followed by a "allow notifications" window, and in the evening, an SMS supposedly from a delivery service arrives with a link to pay a few shekels. On another day, a familiar foreign service suddenly decides that logging in from Israel is suspicious. All this is often lumped together under the term "internet security" and one piece of advice is given: install a VPN.

The advice is too simple. VPN, ad blocker, and DNS filtering work with different parts of the internet connection. Sometimes a person needs one of these tools, sometimes two, sometimes none. And certainly neither VPN nor ad blocker negates the need to check where exactly the link from the SMS leads.

Therefore, it's better to understand not which program promises "complete protection," but what specific problem needs to be solved. For an Israeli user, this is especially a practical question: the same phone can work at home, in the office, in a cafe, at the airport, and already in another country within a week.

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