all-in-one privacy solution":["Proton Unlimited è una soluzione completa per la privacy"],"Black Friday":["Black Friday"],"No ads. Privacy by default.":["Niente pubblicità. La prima regola è la privacy."],"People before profits":["Le persone prima dei profitti"],"Security through transparency":["Più sicurezza grazie alla trasparenza"],"The best Proton Mail ${ BLACK_FRIDAY } deals":["Le migliori offerte di Proton Mail per il ${ BLACK_FRIDAY }"],"The world’s only community- supported email service":["L'unico servizio di posta elettronica al mondo supportato dalla community"]},"specialoffer:limited":{"${ hours } hour":["${ hours } ora","${ hours } ore"],"${ hoursLeft }, ${ minutesLeft } and ${ secondsLeft } left":["Restano ${ hoursLeft }, ${ minutesLeft } e ${ secondsLeft }"],"${ minutes } minute":["${ minutes } minuto","${ minutes } minuti"],"${ seconds } second":["${ seconds } secondo","${ seconds } secondi"],"Limited time offer":["Offerta a tempo limitato"]},"specialoffer:listitem":{"Create multiple addresses":["Crea indirizzi multipli"],"Hide-my-email aliases":["Alias hide-my-email"],"Quickly unsubscribe from newsletters":["Annulla rapidamente l'iscrizione alle newsletter"],"Use your own domain name":["Utilizza il tuo nome di dominio"]},"specialoffer:logos":{"As featured in":["Ne hanno parlato"]},"specialoffer:metadescription":{"Get an encrypted email that protects your privacy":["Scegli un'email cifrata per proteggere la tua privacy"]},"specialoffer:metatitle":{"Proton Mail Black Friday Sale - Up to 40% off":["Offerta Black Friday di Proton Mail - sconti fino al 40%"]},"specialoffer:newmetadescription":{"Get up to 40% off Proton Mail subscriptions this Black Friday. Find great deals on our secure end-to-end encrypted email plans.":["Per questo Black Friday ti offriamo fino al 40% di sconto sugli abbonamenti a Proton Mail. Scopri le straordinarie offerte sui piani di abbonamento alla nostra email dotata di crittografia end-to-end."]},"specialoffer:newmetatitle":{"Proton Mail Black Friday sale | Up to 40% off secure email":["Offerta di Proton Mail per il Black Friday | Fino al 40% di sconto sulla nostra email sicura"]},"specialoffer:note":{"* Billed at ${ TOTAL_SUM } for the first year":["* Addebito di ${ TOTAL_SUM } per il primo anno"],"*Billed at ${ TOTAL_SUM } for the first 2 years":["*Addebito di ${ TOTAL_SUM } per i primi 2 anni"],"30-day money-back guarantee":["Garanzia soddisfatti o rimborsati di 30 giorni"],"Billed at ${ TOTAL_SUM } for the first 2 years":["Addebito di ${ TOTAL_SUM } per i primi 2 anni"],"Billed at ${ TOTAL_SUM } for the first year":["Addebito di ${ TOTAL_SUM } per il primo anno"],"You save ${ SAVE_SUM }":["Risparmi ${ SAVE_SUM }"]},"specialoffer:off":{"${ DISCOUNT } off":["−${ DISCOUNT }"],"${ PERCENT_OFF } off":["−${ PERCENT_OFF }"]},"specialoffer:testimonial":{"I love my ProtonMail":["Adoro ProtonMail"],"My favorite email service":["Il mio servizio email preferito"],"Thanks Proton for keeping us all safe in the complicated internet universe.":["Grazie Proton perché ci proteggi nell'universo complicato di internet."],"You get what you pay for. In the case of big tech, if you pay nothing, you get used. I quit using Gmail and switched to @ProtonMail":["Ottieni quello per cui hai pagato. Nel caso di big tech, se non paghi niente, vieni usato. Ho smesso di usare Gmail e sono passata a @ProtonMail"]},"specialoffer:time":{"Days":["Giorni"],"Hours":["Ore"],"Min":["Min"]},"specialoffer:title":{"And much more":["E molto altro"],"Make your inbox yours":["Personalizza la tua casella di posta"],"Safe from trackers":["Protezione dai tracker"],"Stay organized":["Mantieni tutto organizzato"],"Black Friday email deals":["Offerte email del Black Friday"],"Don’t just take our word for it":["Non lo diciamo solo noi"],"Our story":["La nostra storia"],"Transfer your data from Google in one click":["Trasferisci i tuoi dati da Google con un solo clic"]},"specialoffer:tooltip":{"Access blocked content and browse privately. Includes ${ TOTAL_SERVERS }+ servers in ${ TOTAL_COUNTRIES }+ countries, connect up to 10 devices, access worldwide streaming services, malware and ad-blocker, and more.":["Accedi a contenuti bloccati e naviga in modalità privata. Include ${ TOTAL_SERVERS } server in più di ${ TOTAL_COUNTRIES } Paesi, possibilità di connettere fino a 10 dispositivi, accesso a servizi di streaming in tutto il mondo, blocco di malware e adblocker, e altro ancora."],"Easily share your calendar with your family, friends or colleagues, and view external calendars.":["Condividi facilmente il tuo calendario con familiari, amici o colleghi e visualizza calendari esterni."],"Includes support for 1 custom email domain, 10 email addresses, 10 hide-my-email aliases, calendar sharing, and more.":["Include il supporto per 1 dominio email personalizzato, 10 indirizzi email, 10 alias hide-my-email, condivisione del calendario e altro ancora."],"Includes support for 3 custom email domains, 15 email addresses, unlimited hide-my-email aliases, calendar sharing, and more.":["Include il supporto per 3 domini email personalizzati, 15 indirizzi email, alias hide-my-email illimitati, condivisione del calendario e altro ancora."],"Manage up to 25 calendars, mobile apps, secured with end-to-end encryption, 1-click calendar import from Google, and more.":["Gestisci fino a 25 calendari, app per dispositivi mobili, protezione con la crittografia end-to-end, importazione del calendario da Google in un solo clic e altro ancora."]},"Status Banner":{"At the moment we are experiencing issues with the Proton VPN service":["Al momento abbiamo dei problemi con il servizio di Proton VPN"],"Learn more":["Scopri di più"]},"Status banner":{"Learn more":["Scopri di più"],"Please note that at the moment we are experiencing issues with the ${ issues[0] } service.":["Attenzione: stiamo riscontrando dei problemi con il servizio di ${ issues[0] }"],"We are experiencing issues with one or more services at the moment.":["Stiamo riscontrando dei problemi con uno o più servizi."]},"suggestions":{"Suggestions":["Suggerimenti"]},"Support":{"Sub category":["Sottocategoria","Sottocategorie"]},"Support article":{"${ readingTime } min":["${ readingTime } minuto","${ readingTime } minuti"],"Category":["Categoria","Categorie"],"Didn’t find what you were looking for?":["Non hai trovato quello che cercavi?"],"General contact":["Contatti generali"],"Get help":["Ottieni supporto"],"Legal contact":["Contatti legali"],"Media contact":["Contatti per la stampa"],"Partnerships contact":["Contatti per collaborazioni"],"Reading":["Lettura"]},"Support categories":{"Browse Proton product support":["Consulta l'assistenza sui prodotti Proton"]},"Support category":{"There is no article in this category yet.":["Per ora non ci sono articoli in questa categoria."]},"Support troubleshooting":{"--- Select ---":["--- Seleziona ---"],"App version":["Versione dell'app"],"Browser":["Browser"],"Check if this helps":["Verifica se questo ti è utile"],"Choose a category for your question":["Scegli una categoria per la tua domanda"],"Did this solve your issue ?":["Ti ha risolto il problema?"],"Faster assistance is just a few clicks away — please make your selections":["Ottieni assistenza più velocemente con pochi clic. Fai la tua selezione"],"No, contact support":["No, contatta il supporto"],"Thank you for your feedback":["Grazie per il feedback"],"Troubleshooting":["Risoluzione dei problemi"],"What can we help with ?":["In cosa possiamo esserti di aiuto?"],"Yes":["Sì"]},"support_modal_search_query":{"Search query":["Query di ricerca"]},"support_search_button":{"Search":["Cerca"]},"support_search_i_am_looking_for":{"I'm looking for":["Sto cercando"]},"SupportForm":{"For a faster resolution, please report the issue from the Bridge app: Help > Report a problem.":["Per una risoluzione più rapida, segnala il problema dall'app Bridge: Aiuto > Segnala un problema."],"Information":["Informazioni"]},"SupportForm:option":{"Account Security":["Sicurezza dell'account"],"Contacts":["Contatti"],"Custom email domain":["Dominio email personalizzato"],"Email delivery and Spam":["Consegna delle email e spam"],"Encryption":["Crittografia"],"Login and password":["Login e password"],"Merge aliases and accounts":["Unione di alias e account"],"Migrate to Proton":["Migrazione a Proton"],"Notifications":["Notifiche"],"Other":["Altro"],"Plans and billing":["Piani e fatturazione"],"Proton for Business":["Proton for Business"],"Sign up":["Iscrizione"],"Storage":["Archiviazione"],"Users, addresses, and identities":["Utenti, indirizzi e identità"]},"SupportForm:optionIntro":{"Select a topic":["Seleziona un argomento"]},"swiss_baseed_feature":{"Swiss based":["Con sede in Svizzera"]},"Testimonial":{"Awards":["Premi"],"Customers":["Clienti"],"Featured":["In evidenza"],"Go to testimonial source":["Vai alle testimonianze"],"Reviews":["Recensioni"],"Videos":["Video"]},"Text":{"Find the plan that's right for you":["Trova il piano che fa per te"],"If you need help, check out our ${ supportLink }.":["Se ti serve assistenza dai un’occhiata alla nostra ${ supportLink }."],"The page you’re looking for might have been removed, or it could be an\nold link.":["La pagina che stai cercando potrebbe essere stata rimossa, o il link potrebbe essere vecchio."]},"Title":{"On this page":["In questa pagina"],"Related articles":["Articoli correlati"],"Share ${ thisPage }":["Condividi ${ thisPage }"],"Thank you!":["Grazie"],"this page":["questa pagina"]},"Tooltip":{"More information":["Ulteriori informazioni"]},"tooltip_calendar":{"Create up to 20 custom & shareable encrypted calendars. On top of that, add up to 5 calendars from friends, family, colleagues, and organizations.":["Puoi creare fino a 20 calendari cifrati personalizzati e condivisibili. Puoi inoltre aggiungere fino a 5 calendari di amici, familiari, colleghi e organizzazioni."]},"tooltip_vpn":{"Access blocked content and browse privately. Includes ${ TOTAL_SERVERS }+ servers in ${ TOTAL_COUNTRIES }+ countries, highest VPN speed, ${ TOTAL_VPN_CONNECTIONS } VPN connections, worldwide streaming services, malware and ad-blocker, and more.":["Accedi a contenuti bloccati e naviga in modalità privata. Il piano include più di ${ TOTAL_SERVERS } server in oltre ${ TOTAL_COUNTRIES } Paesi, massima velocità della VPN, ${ TOTAL_VPN_CONNECTIONS } connessioni alla VPN, servizi di streaming in tutto il mondo, anti-malware, ad-blocker e altro ancora."],"Access blocked content and browse privately. Includes ${ TOTAL_SERVERS }+ servers in ${ TOTAL_COUNTRIES }+ countries, highest VPN speed, 10 VPN connections, worldwide streaming services, malware and ad-blocker, and more.":["Accedi a contenuti bloccati e naviga in modalità privata. Il piano include più di ${ TOTAL_SERVERS } server in oltre ${ TOTAL_COUNTRIES } Paesi, massima velocità della VPN, 10 connessioni alla VPN, servizi di streaming in tutto il mondo, anti-malware, ad-blocker e altro ancora."]},"version_history_label":{"Version history":["Cronologia delle versioni"]},"version_history_tooltip":{"Store up to ${ versionHistoryNumber } versions of each file for up to ${ years } years":["Conserva fino a ${ versionHistoryNumber } versioni di ciascun file fino a un massimo di ${ years } anni"]},"vpn_features_link":{"View VPN plans":["Visualizza i piani VPN"]},"vpn_features_useCase":{"Access blocked content and browse privately":["Accedi ai contenuti bloccati e naviga in modalità privata"]}}},"unleashApi":"https://account.proton.me/api"};
// We need to import data (the framework context) from the server
// This Astro feature with define:vars works well but creates an inline script
// So we can't directly import the initFramework helper, we have to store the context
window.frameworkContext = frameworkContext;
})();
Why client-side scanning isn’t the answer | Proton
Law enforcement agencies generally don’t like end-to-end encryption because it blocks them from accessing the private communications of individual citizens. After decades of trying to make tech companies add a “backdoor” to encryption, they’re now shifting strategies and focusing on other technological solutions that they claim would allow for scanning in end-to-end encrypted environments without breaking encryption.
One of the technologies they refer to is called “client-side scanning”. However, client-side scanning does not preserve privacy in the way its proponents claim. In fact, it could enable new and powerful forms of mass surveillance and censorship. Client-side scanning would put free speech and everyone’s security at great risk without producing any great benefits for law enforcement.
Client-side scanning doesn’t technically break encryption because it doesn’t need to: By the time your data is encrypted, authorities have already seen it.
Why authorities came up with client-side scanning
To understand client-side scanning, you need to understand end-to-end encryption.
Privacy-focused tech companies like Proton use end-to-end encryption to make your data inaccessible to anybody but you. Not even Proton can see your information because it’s encrypted before ever leaving your device. Only you or the person you’re talking to can decrypt the data. This prevents Proton’s servers from accessing your data, but it also blocks out hackers and governments.
End-to-end encryption technology was developed in part by the US government to increase security online. It enables the internet as we know it, used for everything from online banking to protecting dissidents from oppressive regimes. But law enforcement agencies claim that it’s preventing them from doing their jobs.
The FBI and other agencies have called this “going dark” to suggest that they’re blind to criminal activity because of encryption. In the past, they have advocated requiring tech companies to purposely create a vulnerability in their encryption — a so-called backdoor for law enforcement. But as Proton and other privacy advocates have pointed out(new window), there is no such thing as a backdoor that only lets the good guys in. If there is a key that opens the private communications of millions of people, hackers will steal it.
Policymakers in most countries have generally sided with the privacy advocates, and there is no backdoor law.
So lately, authorities that want more access have begun to focus on client-side scanning as a new silver bullet, an alternative they say will protect user privacy and does not undermine end-to-end encryption. But if you know how client-side scanning works, it’s easy to understand why it’s potentially worse than a backdoor.
What is client-side scanning, and how does it work
The term client-side scanning refers to several technical methods to analyze the contents of a person’s messages on their device. This can include images, videos, and text messages. Typically, the content is checked against a database of prohibited content and flagged for moderation if there’s a match.
The European Commission published a legislative proposal(new window) in May 2022 that would mandate companies to actively search for child sexual abuse material on their services. While tech companies would be given some latitude to choose how to comply with this requirement, client-side scanning is often presented as the best technology available by law enforcement officials.
The problem with that, as the Electronic Frontier Foundation pointed out(new window), is that the most privacy-preserving methods of client-side scanning are almost impossible to implement.
So the most likely solution would be local hash matching, in which the digital fingerprints of your messages are compared against the digital fingerprints of prohibited content stored in a database on your device. In theory, the database would contain the hashes for child sexual abuse material or materials related to terrorism, but in practice the database could contain anything. And you would have no way of knowing.
That means whenever you download an app, even if it’s end-to-end encrypted like Signal or WhatsApp, you would be downloading a toolkit designed to inspect all your pictures and text messages and potentially report that data to the developer or the government.
This is why client-side scanning is even worse than a backdoor. Law enforcement wants to use backdoors in encryption to scan the content shared with others, but client-side scanning would allow them to look at the content you store on your device, whether you share it or not.
Ways client-side scanning can go wrong
Client-side scanning for the purpose of monitoring people’s communications is tailor-made for abuse. Here are just a few of the ways it can go wrong:
Increased attack surface for hackers
Widespread adoption of client-side scanning would open up new opportunities for hackers to monitor people’s communications. And because the attacks would most likely take place on individual users’ devices, app developers would be less able to intervene to protect their users.
In 2021, a group of well-known computer scientists released a paper(new window) describing the technical failings of client-side scanning as a law enforcement solution. One of their key findings is that client-side scanning destroys trust: “The software provider, the infrastructure operator, and the targeting curator must all be trusted. If any of them — or their key employees — misbehave, or are corrupted, hacked or coerced, the security of the system may fail. We can never know when the system is working correctly and when it is not.”
Government censorship and persecution
If regulators begin requiring client-side scanning for the world’s tech companies, there is nothing that prevents it from a technical standpoint from being used to monitor any type of content. Though it may be initially used to look for child abuse or terrorism, a successive government could use it to target broader categories of content, raising a greater risk of false positives and attacks on freedom.
It’s easy to see how some governments could use this technology to target political opponents, journalists, and anyone else they deem objectionable. It would be left to private app developers to either comply with such orders or shut down their service.
Either way, as soon as client-side scanning is deployed, users who rely on private and secure apps would have no way to trust their communications are protected.
False positives
Even in the best-case scenario, in which responsible governments and well-meaning developers implement a narrow form of client-side scanning, the technology is simply not sophisticated enough to identify only the targeted material. There are already cases of false positives that have ruined people’s lives, such as the father who sent a picture of his son to their doctor and was flagged as a predator(new window) and reported to the police.
In a letter(new window) opposing the European proposal, over 100 privacy advocacy organizations expressed specific concerns about client-side scanning. Child-abuse survivors describing their trauma to a trusted adult could be flagged for monitoring and reported. Anyone who sends an intimate picture could have that picture mistakenly flagged and examined by a third party.
Conclusion
Despite the way client-side scanning is optimistically portrayed as a magical solution, it’s not a privacy-preserving alternative to encryption backdoors. And in many ways, it’s worse. Authorities would gain the technical ability to scan everyone’s unencrypted data at all times. Using any chat app or social media platform would mean installing spyware on your device.
Meanwhile, the flood of false positives would likely overwhelm app developers and law enforcement agencies alike. Suddenly tasked with combing through people’s private pictures and messages, resources will be diverted away from actually preventing criminal activity.
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