A TED talk by Andy Yen, all the way back from 2015.

Sending an email message is like sending a postcard, says scientist Andy Yen in this thought-provoking talk: Anyone can read it. Yet encryption, the technology that protects the privacy of email communication, does exist. It's just that until now it has been difficult to install and a hassle to use. Showing a demo of an email program he designed with colleagues at CERN, Yen argues that encryption can be made simple to the point of becoming the default option, providing true email privacy to all.

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If you are using Gmail to send messages from your Microsoft Outlook or Yahoo email address, that feature is going away. Here’s what’s you need to know.

Google announced that it’s ending support for Gmail “Send as,” a setting that lets you send messages from a third-party address through Gmail’s own interface, citing “disproportionate maintenance resources.”

This is happening in stages: Google has begun restricting new Gmail “Send as” configurations for third-party addresses on the web, while existing configurations will continue to work during the transition. The feature will be fully removed in January 2027. At that point, according to Google’s own support page, “you will no longer be able to send mail from third-party email accounts in Gmail on the web or in the Gmail mobile apps.” You will still be able to read and check third-party emails inside the Gmail app.

The company is also ending Gmailify in January 2027, a feature that extends Gmail’s own spam protection and inbox organization to third-party accounts.

Read more: https://proton.me/blog/gmail-ends-send-as-third-party

Do your private SSH keys currently live on disk, encrypted with a passphrase you type once per session, or with no passphrase at all? In both cases, there's now an easier and more secure way.

Proton Pass now has an SSH agent, allowing you to store the key inside your vault instead.

→ In the SSH Agent section of Settings ⚙ icon → General, tick the Use Proton Pass as SSH agent box to generate a setup command that you can then paste into your terminal.

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Unlock the vault once; no more re-entering a passphrase with every connection, or sessions that die on reboot.

Managing keys becomes a vault action instead of a manual file chore. Easier to keep track of, especially on multiple machines and systems. Gain peace of mind from one less secret exposed on disk.

Solve the one place key management actually breaks down: loose encrypted files scattered across machines, and replace it with one encrypted vault with biometric unlock and access controls.

For the bulk of your SSH work (git, GitHub, GitLab, SSH to servers), using a vault is both cleaner and tighter. Give yourself centralized visibility into which keys are active and where.

Gradually rolling out now to Visionary, B2B Bundles, Pass Professional, Plus, and Family. Desktop only.

To understand whether Europe is prepared for an outage, a cyberattack, or a provider cutting off access outright, we conducted a multi-country survey asking founders, CEOs, and IT directors about the effects of tech disruption.

Here’s what we found.

56% say geopolitical risk is a factor in their tech purchasing decisions

Worried the US administration could order providers to cut off IT services to foreign businesses overnight, European businesses are weighing these risks as heavily as ransomware or cyberattacks. 

The concerns are valid. The US administration has already demonstrated a willingness to wield executive power, including sanctions, export controls, or tariff threats, to accomplish foreign policy goals.

Kill switch anxiety now at par with fear of cyberattacks

If ransomware and cyberattacks are worth mitigating with a security plan, then kill switch and outage risk is equally deserving of a proactive response. In reality the response is uneven, with organizations adopting business continuity solutions for one system at a time. Only 34% of businesses have a fallback for their most important platform: email.

Question: How concerned are you that your company could lose access to a critical technology service due to a cyberattack or ransomware attack? vs How concerned are you that one of your US technology providers could disable your access through a kill switch?

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Business continuity coverage is a patchwork

A kill switch could impact the entire stack. If all your services are based in the US, a secondary provider that’s also a US company may not be helpful. Only diversifying outside US jurisdiction provides a solution.

Question: Does your company have continuity solutions for any of the following systems in the event of a disruption like an outage, a cyberattack, or losing access to a service you rely on?

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Two-thirds of businesses would switch providers after a government-triggered blackout

A clear majority of businesses is willing to act. Businesses are planning for every kind of disruption — outages, cyberattacks, loss of access. They know that whatever the cause, the cost of going dark is too expensive to ignore. 

Question: If a foreign government intentionally disabled or blocked access to a critical technology service your company relies on, how likely would you be to switch to an alternative provider?

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54% of businesses would stop work after just a day without access

No matter their size, 86% of businesses we surveyed said they experienced at least one disruption in the past 12 months from an outage, cyberattack, or loss of access to a service. And they say real money is at stake. 

A huge share of businesses are living on a 24-hour buffer where a kill switch or technical outage would be an immediate operational crisis.

Most businesses are one bad day away from a shutdown

More than half (54%) of businesses say they couldn’t survive more than a single business day before having to shut down services and operations until digital tools were back online. And each day of downtime comes with a real cost, with effects that touch a company’s finances and its ability to operate.

Question: If your company suddenly lost access to cloud and digital services or suffered a cyberattack, how long could it operate before having to shut down?

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Nearly 1 in 3 large businesses expect a six-figure loss from a single day offline

Loss scales with size, as you’d expect — though the number is stark: 29% of large businesses expect to lose more than €100,000 from a single day of downtime. 

Question: If your tech systems went down for a day, how much do you estimate your company would lose?

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A tech outage hits every part of the business

A day offline doesn’t just show up on a balance sheet. It stalls the work itself, strains relationships with customers, and, for some businesses, chips away at their reputation long after access is restored. 

Question: If your company lost access to these critical digital tools, how would it be affected?

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Methodology

This survey was conducted by Proton among 1,500 business leaders across the UK, Germany, and France (500 respondents per country), fielded July 15–24, 2026. Respondents were screened for involvement in their company’s technology, backup, security, or continuity decisions — 32% identified as the main decision-maker, 38% share decision-making, and 30% influence recommendations. Respondents spanned a range of roles, including IT leaders (16%), founders/owners (7%), marketing and sales leads (12%), HR/People Ops leads (11%), and finance/procurement (10%), among others. Industries represented included technology/software (22%), healthcare (26%), business services (15%), and education/research (15%).

Secure Core is a feature that exists in Proton VPN, a lot of at-risk people (i.e. journalists) depend on it every day. Here's what you need to know.

Pros:

• Routes your traffic through a hardened server in Switzerland, Iceland, or Sweden before it reaches the exit server, so even a compromised exit can't be traced back to you.
• Protects against network-based attacks and correlation.
• Runs on servers Proton fully owns.

Cons:

• Not the fastest connection speed

Secure core on Proton VPN

Have you used Secure Core before?

Email filters help to keep your inbox organized

If your inbox is full of emails you’ll never read, then you know how hard it can be to find the one email you’re looking for. As you file through subject lines, straining your eyes, you recognize that feeling of dread. You could simply end the problem by deleting all of your messages, but this would haunt you later. You could spend hours unsubscribing and deleting mindlessly, but this would eat up valuable hours of your workday.

There’s an easier way: Email filters streamline your correspondence, organizing your inbox so that you save time and can focus on what matters (instead of poring over email blasts from Foot Locker). But how exactly do you set up a filter for email and better manage your inbox?

In this article, you’ll learn what email filters are, how they work, and how to use them effectively to improve your email organization for good.

Read more: https://proton.me/blog/email-filters

Hey everyone,

We’re proud to announce that the long-awaited “Stealth” connection protocol is now available in beta for Linux!

📎 To try it, make sure your Proton VPN app is on version 4.17.1, and follow this guide.

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If you are on a supported distro (more on this later), please help us by giving it a try and providing us with as much feedback as possible; the more feedback and bugs we can squash, the faster we can roll this feature out of beta

What Stealth does

Most VPN protocols produce traffic that's identifiable as VPN traffic. Networks running deep packet inspection can spot it and block or throttle the connection, which is why VPNs stop working on some school and workplace networks, and why they get blocked entirely in censored regions.

Stealth disguises your VPN traffic to look like ordinary encrypted web traffic. Instead of "this person is using a VPN," the network sees traffic that resembles a normal HTTPS connection. That makes it significantly harder to detect and block.

You'll want Stealth if you're on a network that blocks or throttles VPNs, connecting from a region with heavy censorship, or you'd simply rather your network operator not know you're using a VPN. For everyday use where nothing is being blocked, WireGuard will still be faster, while Stealth trades some speed for undetectability.

This is a beta

Expect instability and bugs. Stealth on Linux is built on our new WireGuard codebase, and this early release is specifically so we can find problems before general release.

If you hit issues, please tell us: your distro and version, what you were doing, and what went wrong.

Please note that this feature is only available for distros that are directly installed via our repos (Debian, Ubuntu, Fedora), and versions such as the Snap store app, or other distros such as Arch will be available by the end of summer.

Lastly, it may take some time before this feature becomes available, even if you are on the latest version of the app. We’re rolling this out live, so it may take a day or two before the feature becomes visible on your end.

Stay safe,
Proton Team

If a lightbulb appears above someone's head in a cartoon, they've just had an idea. For one person, their 💡 moment was all about using this humble illumination device for a very noble purpose: dodging censorship.

So, what if you put banned books on a smart bulb?