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Find great deals on our secure end-to-end encrypted email plans.":["Obtenez jusqu'à 40 % de réduction sur les abonnements Proton Mail à l'occasion du Black Friday. Profitez d'offres exceptionnelles sur nos abonnements de messagerie électronique sécurisée et chiffrée de bout en bout."]},"specialoffer:newmetatitle":{"Proton Mail Black Friday sale | Up to 40% off secure email":["Offre Black Friday Proton Mail | Jusqu'à 40 % de réduction"]},"specialoffer:note":{"* Billed at ${ TOTAL_SUM } for the first year":["* Facturé ${ TOTAL_SUM } pour la première année"],"*Billed at ${ TOTAL_SUM } for the first 2 years":["*Facturé ${ TOTAL_SUM } pour les 2 premières années"],"30-day money-back guarantee":["Garantie satisfait ou remboursé pendant 30 jours"],"Billed at ${ TOTAL_SUM } for the first 2 years":["Facturé ${ TOTAL_SUM } pour les 2 premières années"],"Billed at ${ TOTAL_SUM } for the first year":["Facturé ${ TOTAL_SUM } pour la première année"],"You save ${ SAVE_SUM }":["Vous économisez ${ SAVE_SUM }"]},"specialoffer:off":{"${ PERCENT_OFF } off":["-${ PERCENT_OFF }"]},"specialoffer:testimonial":{"I love my ProtonMail":["J'adore mon ProtonMail"],"My favorite email service":["Ma messagerie électronique préférée"],"Thanks Proton for keeping us all safe in the complicated internet universe.":["Merci Proton de nous garder en sécurité dans l'univers complexe d'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":["Vous avez ce pour quoi vous payez. Avec les Big Tech, si vous ne payez rien, vous êtes utilisé. J'ai arrêté d'utiliser Gmail et je suis passée @ProtonMail"]},"specialoffer:time":{"Days":["Jours"],"Hours":["Heures"],"Min":["Min"]},"specialoffer:title":{"And much more":["Et aussi"],"Safe from trackers":["À l'abri des traqueurs"],"Stay organized":["Restez organisé(e)"],"Black Friday email deals":["Offres Black Friday pour la messagerie électronique"],"Don’t just take our word for it":["Ce qu'en disent nos utilisateurs"],"Make your inbox yours":["Appropriez-vous totalement votre boîte de réception"],"Our story":["Notre histoire"],"Transfer your data from Google in one click":["Transférez vos données depuis Google en un clic"]},"specialoffer:tooltip":{"Access blocked content and browse privately. Includes ${ TOTAL_VPN_SERVERS }+ servers in ${ TOTAL_VPN_COUNTRIES }+ countries, connect up to 10 devices, access worldwide streaming services, malware and ad-blocker, and more.":["Accédez aux contenus bloqués et naviguez en toute confidentialité. Comprend plus de ${ TOTAL_VPN_SERVERS } serveurs dans plus de ${ TOTAL_VPN_COUNTRIES } pays, la possibilité de connecter jusqu'à 10 appareils, l'accès aux services de streaming dans le monde entier, un bloqueur de logiciels malveillants et de publicités et bien plus encore."],"Easily share your calendar with your family, friends or colleagues, and view external calendars.":["Partagez facilement votre calendrier avec votre famille, vos amis ou collègues et consultez des calendriers externes."],"Includes support for 1 custom email domain, 10 email addresses, 10 hide-my-email aliases, calendar sharing, and more.":["Comprend la prise en charge de 1 domaine de messagerie personnalisé, de 10 adresses e-mail, de 10 alias « hide-my-email », du partage de calendriers et bien d'autres fonctionnalités."],"Includes support for 3 custom email domains, 15 email addresses, unlimited hide-my-email aliases, calendar sharing, and more.":["Comprend la prise en charge de 3 domaines de messagerie personnalisés, de 15 adresses e-mail, d'un nombre illimité d'alias « hide-my-email », du partage de calendriers et bien d'autres fonctionnalités."],"Manage up to 25 calendars, mobile apps, secured with end-to-end encryption, 1-click calendar import from Google, and more.":["Jusqu'à 25 calendriers, des applications mobiles, la sécurité avec le chiffrement de bout en bout, l'importation de calendrier en un clic depuis Google..."]},"Status banner":{"Learn more":["En savoir plus"],"Please note that at the moment we are experiencing issues with the ${ issues[0] } service.":["Nous rencontrons actuellement des problèmes avec le service ${ issues[0] }."],"We are experiencing issues with one or more services at the moment.":["Nous rencontrons actuellement des problèmes avec un ou plusieurs services."]},"Status Banner":{"At the moment we are experiencing issues with the Proton VPN service":["Nous rencontrons actuellement des problèmes avec le service Proton VPN."],"Learn more":["En savoir plus"]},"steps":{"Step":["Étape"]},"suggestions":{"Suggestions":["Suggestions"]},"Support":{"Sub category":["Sous-catégorie","Sous-catégories"]},"Support article":{"${ readingTime } min":["${ readingTime } minute","${ readingTime } minutes"],"Category":["Catégorie","Catégories"],"Didn’t find what you were looking for?":["Vous ne trouvez pas ce que vous cherchez ?"],"General contact":["Contact - 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In this article, we explain Proton Drive’s malicious file detection feature.
What is malicious file detection?
At Proton, safeguarding your privacy has always been our top priority. Whether it’s through NetShield for ProtonVPN(nouvelle fenêtre), which blocks phishing sites, malware, and intrusive advertising, or Proton Sentinel, which helps prevent account takeover attacks, we have been developing new technologies to offer comprehensive protection without compromising your privacy.
Our privacy-first malicious file detection feature is another line of defense against hackers. When you receive a sharing link to a Proton Drive file, you will have the ability to check it first for malware before downloading it to your device.
Unlike conventional malware detection methods that involve scanning the content of files, which can potentially infringe on your privacy, our approach is different. Instead of scrutinizing the contents of files, we employ a privacy-preserving technique that relies on file hashes for detection. This means the actual contents of your files remain entirely confidential and are never accessed or analyzed by anyone, not even us.
Moreover, in Proton Drive, you have control over when detection scans are performed. Unlike traditional antivirus software that constantly runs in the background, our malicious file detection is activated only when you choose to initiate a scan. This puts you in the driver’s seat, allowing you to decide when and how your files are analyzed for potential threats.
By adopting a privacy-first approach to malicious file detection, we are increasing platform safety without sacrificing privacy. This approach reflects our commitment to providing you with robust protection against cyber threats while upholding the fundamental right to privacy.
How malicious file detection works in Proton
On downloading files from your Proton Drive, you now have a Scan and Download button. You have the option to perform a check of the file’s hash against a database of known malicious file hashes. The contents of the file are always encrypted, but if you prefer not to share even the file hash with us you can simply download the file without scanning.
When we receive a file hash, we check if the file is in a list of known malicious files. If malicious files are detected, we will notify you about the dangers of the file, but will not prevent you from downloading at your own risk.
Staying vigilant
While our new file hash check feature significantly enhances your ability to detect known threats, it’s essential to emphasize the importance of maintaining a vigilant approach to cybersecurity. No security measure can replace the value of a cautious and informed user.
Our file hash check is designed to identify files with known malicious signatures. However, the landscape of malware is constantly evolving, with new threats emerging regularly. It’s crucial to acknowledge that our checks provide protection against known threats, but they may not catch unidentified or emerging malware.
As such, it’s important that you practice safe downloading habits:
Never download files from unknown sources: Always make sure you know the sender before downloading an attachment. Be suspicious of emails, websites, and sharing links you were expecting.
Keep your software updated: Regularly update your software and applications to benefit from the latest security patches. Hackers take advantage of outdated software to spread malware.
Your personal data is extremely valuable to hackers, which is why it’s essential to choose security-first online services that use end-to-end encryption by default. Developing malicious file detection that preserves strong encryption is a major step forward in our mission.