As part of our commitment to security, we maintain a Tor onion site for ProtonMail which can provide extra privacy and accessibility in countries where ProtonMail is blocked. ProtonMail is one of the only email providers that offers email access over Tor. We launched the ProtonMail onion site last year as an extra way to …

Your email account is a gold mine for hackers. And yet many people still aren’t taking basic precautions to secure their accounts. Here are five essential steps for safe email. Hacks are surprisingly commonplace. In 2014, for instance, nearly half of all American adults had some form of data stolen from corporate servers in a …

Whether you cover the CIA or city hall, journalism is as much about keeping secrets as exposing them. We created this online security guide to help democracy’s defenders defend themselves too. Part of our mission at ProtonMail has always been to give journalists, dissidents, and others the tools and knowledge they need to do their …

ProtonMail is an encrypted email service that takes a radically different approach to email security. Find out how ProtonMail security compares to Gmail security. In 2014, ProtonMail became the world’s first email service to protect data with end-to-end encryption, and today is the world’s most popular secure email service with millions of users worldwide. ProtonMail’s …

Security is a key consideration when it comes to Bitcoin. Here’s how you can keep your Bitcoins safe from theft and hacking. When you invest in Bitcoin, there isn’t just the worry that the price of Bitcoin will drop, but also the possibility that your Bitcoin will be stolen. Unlike traditional investments, there is very …

These days, email breaches are becoming increasingly common for enterprises. There are however reliable ways to prevent email breaches, or reduce their impact. It should really come as no surprise that email hacks are on the rise. As businesses go digital, email data is becoming increasingly valuable for hackers. While the trending topic this week …

In late August, a security advisory was published regarding a newly discovered exploit affecting email providers.The issue, dubbed as “ROPEMAKER”, stands for “Remotely Originated Post-delivery Email Manipulation Attacks Keeping Email Risky”. The attack is an interesting one so our security team took a closer look at it. The RopeMaker technique allows an attacker to visually …

Last Friday, a weaponized version of a NSA exploit was used to infect over three hundred thousand computers in over 150 countries with the WannaCry ransomware. In addition to government ministries and transportation infrastructure, the British National Health Service (NHS) was crippled, disrupting treatment and care for thousands of patients, and putting countless lives at …

A typical way of getting hacked is falling for a phishing attack. In fact, most of the large data breaches in recent years have been due to phishing.   The number of phishing attacks is increasing because they are both easy to execute and highly effective. Even if the eventual goal of an attacker is an …

As the world’s largest encrypted email provider, people have frequently asked us what is the best VPN service. In this article, we discuss what to be aware of when choosing a VPN service, and our recommended VPN security requirements. What is a VPN? A Virtual Private Network (VPN) is a tool to secure your internet …

Confirming what was long suspected by the security community, Yahoo has confirmed a massive breach of over 500 million email accounts, including both credentials and security questions. October 4, 2017 Update: Yahoo now confirms that the hack impacts 3 billion accounts, and not the 1 billion or 500 million that was previously reported. Email’s changing …

ProtonMail is not vulnerable to the recently announced Linux TCP Vulnerability Earlier this week, a rather serious Linux TCP Vulnerability was disclosed (CVE-2016-5696) by security researchers in the US. As a result, ProtonMail’s security team did an analysis of this bug to see if it compromises the integrity of ProtonMail’s encrypted email service. Our analysis …