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Why operating system (OS) updates are important

March 11th, 2021 in Security

Many users turn to Proton to secure their most sensitive information. Your security is our number one priority, and we employ advanced encryption in all our apps to ensure that your personal data cannot be exposed by malicious actors.  However, Proton apps, like all apps, rely on the security of your operating system (OS) to […]

ProtonVPN prevents Apple apps on Big Sur exclusion list from bypassing firewall

November 17th, 2020 in Security

Update: Apple has listened to its users, and no longer exempts its own apps from any firewall interfaces in macOS. The information in this article is therefore of purely historical interest only. The new macOS release, Big Sur, has made headlines due to Apple’s decision to place 56 of its own apps, including FaceTime, Apple […]

VPN bypass vulnerability in Apple iOS

March 25th, 2020 in Security

UPDATE Oct. 19, 2020: Although Apple has not fixed the VPN bypass problem directly on iOS 14, they have provided the Kill Switch capability to app developers. By enabling Kill Switch, existing connections will be blocked whenever VPN is enabled. We will be adding this capability in an upcoming release of ProtonVPN. UPDATE Sept. 16, […]

Statement from ProtonVPN regarding CVE-2019-14899

December 13th, 2019 in Security

On Dec. 4, security researchers at the IT security site SecLists announced a security flaw known as CVE-2019-14899 that affects all VPNs that use the OpenVPN protocol and most VPNs that use the IKEv2/IPSec protocol In narrow circumstances. This vulnerability cannot be used for mass surveillance. It allows attackers to actively probe (or “guess”) what […]

Learn how to identify and how to delete fake apps.

Beware of fake apps pretending to be ProtonVPN

September 19th, 2019 in Security

Recently, we have noticed an uptick in the number of fake ProtonVPN apps. Hackers create fake versions of popular applications, like Evernote, Signal, and ProtonVPN, to smuggle malware onto unsuspecting users’ devices. Once they are downloaded, the malware contained in these fake apps can unleash ads all over your device, take control of your device’s […]

Here are all the countries where the government is trying to ban VPNs

October 19th, 2018 in Security

VPNs keep your online activity private and unrestricted. Some countries with repressive governments have outlawed VPNs in an attempt to maintain control. VPNs are powerful tools that can evade all but the most sophisticated efforts to regulate the Internet and censor information. That is why repressive governments around the world have been making efforts to […]

Which personal data are the most sensitive? Data Dilemmas:

October 12th, 2018 in Security

National Cyber Security Awareness Month was originally created as a collaborative effort between the US government and the tech industry to ensure that every American has the resources they need to stay safe and secure online. As a no-logs VPN service, we obviously take security and privacy seriously. But none of our projects will make […]

Is public WiFi safe to use?

October 4th, 2018 in Security

We have all done it: connected to a free public WiFi network we did not know to check emails, read the news, or scroll Instagram. What we often do not think about is that the same convenience that makes public WiFi so easy to use is also what makes it so attractive to hackers. Since […]

Why it is hard (if not impossible) to run a privacy-focused company in the US

September 12th, 2018 in Security

When people think of tech companies, they typically think of Silicon Valley. This is where some of the biggest tech companies got their start and its where most of them have their headquarters. This is no accident. The available talent in the US, the easy access to capital and investors, and a general entrepreneurial spirit […]

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