<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Per Umani</title><description>Technology, explained to humans</description><link>https://www.perumani.com/</link><language>en</language><item><title>But what is a VPN for? (And do you actually need one?)</title><link>https://www.perumani.com/en/what-is-it-for/a-cosa-serve-una-vpn/</link><guid isPermaLink="true">https://www.perumani.com/en/what-is-it-for/a-cosa-serve-una-vpn/</guid><description>The ads say you&apos;re in danger without a VPN. The truth is more boring: it&apos;s useful in three specific situations, and in all the others it&apos;s a subscription you don&apos;t need. Here they are.</description><pubDate>Thu, 10 Sep 2026 00:00:00 GMT</pubDate></item><item><title>How to create a strong password you can actually remember</title><link>https://www.perumani.com/en/cyber/password-sicura-facile-da-ricordare/</link><guid isPermaLink="true">https://www.perumani.com/en/cyber/password-sicura-facile-da-ricordare/</guid><description>No weird formulas: a three-step method to invent long passwords, different for every site and easy to keep in mind. With examples.</description><pubDate>Wed, 09 Sep 2026 00:00:00 GMT</pubDate></item><item><title>What a language model is, and why it sometimes makes things up</title><link>https://www.perumani.com/en/ai/cos-e-un-modello-linguistico/</link><guid isPermaLink="true">https://www.perumani.com/en/ai/cos-e-un-modello-linguistico/</guid><description>ChatGPT, Gemini and Claude are all built on language models. Here is how they really work, with no formulas, and why they occasionally get things wrong with total confidence.</description><pubDate>Tue, 08 Sep 2026 00:00:00 GMT</pubDate></item><item><title>Two-step verification: what it is and how to turn it on in Gmail, in 5 minutes</title><link>https://www.perumani.com/en/cyber/verifica-in-due-passaggi-spiegata-semplice/</link><guid isPermaLink="true">https://www.perumani.com/en/cyber/verifica-in-due-passaggi-spiegata-semplice/</guid><description>It&apos;s the extra lock that stops thieves even when they have your password. Explained from scratch, with the exact steps to turn it on for your Google account.</description><pubDate>Mon, 07 Sep 2026 00:00:00 GMT</pubDate></item><item><title>But what is an eSIM for? (And is it worth switching?)</title><link>https://www.perumani.com/en/what-is-it-for/a-cosa-serve-la-esim/</link><guid isPermaLink="true">https://www.perumani.com/en/what-is-it-for/a-cosa-serve-la-esim/</guid><description>New phones offer it, carriers push it, but nobody explains what changes. The eSIM in plain words: what it is, when it&apos;s worth it, and the one case where the plastic SIM is better.</description><pubDate>Sun, 06 Sep 2026 00:00:00 GMT</pubDate></item><item><title>How to write an effective prompt: the 5 rules that actually change the answers</title><link>https://www.perumani.com/en/ai/come-scrivere-un-prompt-efficace/</link><guid isPermaLink="true">https://www.perumani.com/en/ai/come-scrivere-un-prompt-efficace/</guid><description>The quality of what you get from an AI assistant depends almost entirely on how you ask. Five practical rules, with before-and-after examples.</description><pubDate>Sat, 05 Sep 2026 00:00:00 GMT</pubDate></item><item><title>Phone backup: what it is, why you need it and how to set it up in 10 minutes</title><link>https://www.perumani.com/en/cyber/backup-telefono-spiegato-semplice/</link><guid isPermaLink="true">https://www.perumani.com/en/cyber/backup-telefono-spiegato-semplice/</guid><description>If your phone breaks or gets stolen, photos and contacts are gone for good. Unless you have a backup. Here&apos;s how to turn it on for Android and iPhone, once and for all.</description><pubDate>Fri, 04 Sep 2026 00:00:00 GMT</pubDate></item><item><title>Smartphone battery: 7 habits that make it last longer</title><link>https://www.perumani.com/en/tech/batteria-smartphone-abitudini/</link><guid isPermaLink="true">https://www.perumani.com/en/tech/batteria-smartphone-abitudini/</guid><description>No miracle app required. A few charging habits are enough to slow battery wear and keep your phone in shape for years.</description><pubDate>Thu, 03 Sep 2026 00:00:00 GMT</pubDate></item><item><title>Passkeys: what they are and why they are replacing passwords</title><link>https://www.perumani.com/en/tech/passkey-cosa-sono/</link><guid isPermaLink="true">https://www.perumani.com/en/tech/passkey-cosa-sono/</guid><description>Google, Apple, Microsoft, Amazon and PayPal already support them. Passkeys get rid of passwords and make phishing almost impossible. Here is how they work and how to turn them on.</description><pubDate>Tue, 01 Sep 2026 00:00:00 GMT</pubDate></item><item><title>How to spot a scam text message: the signs of smishing and what to do</title><link>https://www.perumani.com/en/cyber/riconoscere-sms-phishing/</link><guid isPermaLink="true">https://www.perumani.com/en/cyber/riconoscere-sms-phishing/</guid><description>Parcels on hold, blocked accounts, fines to pay: scam texts are getting more convincing. Here are the five signs that give them away, and what to do if you&apos;ve already tapped the link.</description><pubDate>Sun, 30 Aug 2026 00:00:00 GMT</pubDate></item><item><title>How to free up space on Android and iPhone without deleting your photos</title><link>https://www.perumani.com/en/tech/liberare-spazio-smartphone/</link><guid isPermaLink="true">https://www.perumani.com/en/tech/liberare-spazio-smartphone/</guid><description>Storage full but you don&apos;t want to give up your memories? Here, in order of effectiveness, is where the wasted gigabytes hide and how to get them back in ten minutes.</description><pubDate>Thu, 27 Aug 2026 00:00:00 GMT</pubDate></item><item><title>Two-factor authentication: SMS, app or hardware key? Which one to choose</title><link>https://www.perumani.com/en/cyber/autenticazione-due-fattori-quale-scegliere/</link><guid isPermaLink="true">https://www.perumani.com/en/cyber/autenticazione-due-fattori-quale-scegliere/</guid><description>Not all second factors are equal. A comparison of SMS codes, authenticator apps, push notifications, passkeys and hardware keys, with a recommendation for each type of account.</description><pubDate>Mon, 24 Aug 2026 00:00:00 GMT</pubDate></item></channel></rss>