What Proton shipped in May 2026

Secure video conferencing for businesses: What to know

AI compliance tools: What small businesses need to know

Proton’s guide highlights the emerging regulatory risks of AI tools, including data logging, training use, and lack of transparency, which create compliance challenges for businesses. It positions Pro…

OTP bots: How to stay one step ahead

The Proton Sentinel high-security program

Proton introduced Proton Sentinel, a high-security program offering 24/7 human-monitored protection for premium account holders. The program provides advanced security alerts, real-time defensive acti…

Important clarifications regarding arrest of climate activist

Proton confirmed it complied with a Swiss legal order to collect account metadata for a climate activist under investigation, noting Swiss law requires disclosure in criminal cases. The company emphas…

An updated Proton is coming

Proton announced a major rebrand to unify its services (Mail, VPN, Calendar, Drive) under a consistent visual identity, starting with visual updates rolling out next week. Existing email addresses rem…

How we built the Proton website

Proton consolidated six separate websites into a unified platform using Gatsby for static pages and WordPress Multisite for blogs, reducing technology stacks from four to two. The new system simplifie…

Proton is transitioning towards a non-profit structure

Proton created the Proton Foundation as its primary shareholder via a donation of shares, making the foundation irrevocably committed to its original mission of privacy and online freedom. The foundat…

Proton Mail’s Crowdfunding Campaign has started!

Proton Mail’s crowdfunding campaign exceeded its $100,000 target, raising over $500,000 to purchase servers and support users on its waiting list. The funds will help scale infrastructure in Switzerla…

Proton Mail on Mr. Robot

2016 Proton Mail Encrypted Email User Survey

Proton Mail opened its 2016 annual user survey to guide development of Proton Mail 4.0 and allocate 2017 resources, emphasizing community-driven priorities. The survey, now closed, aimed to gather inp…

Our Tor encrypted email site has a new SSL certificate

Proton Mail renewed the SSL certificate for its Tor onion site, adding redundant HTTPS encryption to protect against potential Tor compromises and internal server traffic. The onion site remains the o…

You can now use your Gmail account in Proton Mail

Proton Mail introduced a feature allowing users to connect their Gmail accounts directly within Proton Mail, importing recent messages and automatically syncing new ones. This enables gradual migratio…

Proton supports freedom in Belarus

Can you shop safely on Facebook Marketplace?  Common scams to watch out for

How to block websites on Chrome: A step-by-step guide for parents

How to change your WiFi password

HOTP vs TOTP vs OTP: What do you need to know?

What is TOTP? Everything you need to know about time-based one-time passwords

Proton introduced an integrated TOTP authenticator within Proton Pass, allowing users to generate and store time-based one-time passwords directly in the password manager. This eliminates the need for…

Press safety at risk: US journalists’ personal data leaked on the dark web

Proton’s research with Constella Intelligence found over 116,000 dark web exposures linked to 35,000 email addresses at The New York Times, The Washington Post, and The Wall Street Journal, including …

The real cost of a data breach for UK businesses

A Proton Business blog post examines the true cost of data breaches in the UK, highlighting that fines are only a fraction of the financial impact. Average self-reported costs are £1,600–£3,550, but i…

What is HOTP? A guide to HMAC-based one-time passwords

Proton published a detailed explainer on HOTP (HMAC-based one-time passwords), highlighting its counter-based system for offline reliability and comparing it to TOTP and SMS codes. The post promotes P…

What is an AI agent?

Proton published a guide defining AI agents, their capabilities, and risks, while positioning Proton Pass as a secure solution for managing agent credentials via AI access tokens. The post emphasizes …

The principle of least privilege: how to protect your SMB

Introducing Proton Pass for AI agents: The password manager for AI that keeps you in control

Proton Pass now supports AI access tokens, allowing users to securely share credentials with AI agents while maintaining control and visibility. The feature is included at no extra cost in Proton Pass…

Passkeys for business: should your company move beyond passwords?

Proton highlights the growing adoption of passkeys as a secure alternative to passwords, reducing phishing risks and credential theft. While passwords remain necessary in mixed environments, 87% of su…

How businesses can detect and prevent account takeover attacks

6 document management best practices

Why secure file sharing is your competitors’ biggest bluff

Proton’s SMB Cybersecurity Report 2026 reveals 45% of businesses claiming secure file sharing lack proper tools, creating a competitive gap for genuinely secure providers. Proton urges SMBs to adopt e…

If you don’t control your data, who does? A European strategist explains

Proton’s blog features an interview with Austrian data strategist Fritz Fahringer, who argues that reliance on non-European tech providers exposes businesses to data access risks, regulatory conflicts…

How to build a security awareness program in your organization

Proton published a guide arguing that most security awareness programs fail because they treat training as a one-time event rather than an ongoing culture. The post emphasizes role-specific training, …

How to prevent and recover from ransomware attacks on small businesses

Proton highlights rising ransomware attacks on SMBs, with 63% of breaches tracked in 2025 involving small businesses and 352M leaked records. The post emphasizes phishing, weak credentials, and unpatc…

How to change email password on Gmail, Outlook, and Proton

Password security: Why breaches still happen

Proton highlights persistent password-related breaches despite awareness, attributing risks to weak credentials, reuse, insecure storage, and phishing. The article emphasizes the need for strong, uniq…

Phishing awareness training: How to prepare your team to recognize attacks

OpenPGP.js and GopenPGP are easier to test with other encryption suites

Proton announced the integration of its OpenPGP.js and GopenPGP libraries into the OpenPGP interoperability test suite maintained by Sequoia PGP. This enables standardized compatibility testing across…

Transition assistance for Lavaboom shutdown

Proton introduced a new secure email service to address the challenges of building a privacy-focused email platform, including scalability, encryption, and deliverability. The company highlighted its …

Results of the 2024 Proton community survey

Proton’s annual survey of thousands of users found high satisfaction (75% likely to recommend) but identified key areas for improvement, including Proton Drive’s upcoming feature additions. Users prio…

We have released version 3.0 of OpenPGPjs, an open source OpenPGP library

Proton launched OpenPGPjs 3.0, a major update to its open-source public-key cryptography library, enabling full PGP interoperability for Proton Mail this spring. The release includes breaking API chan…

The new Proton Mail has passed its independent security audit

A breakdown of a DKIM replay attack

Proton Mail experienced a DKIM replay attack starting December 1, 2021, where spam emails spoofing proton.me were resent to Gmail, damaging its domain reputation and affecting legitimate email deliver…

Proton Mail Security Contributors

We’re updating the Proton newsletter

Proton is updating its newsletter format to address scalability and relevance issues by splitting it into service-specific newsletters for each Proton product and a single general Proton newsletter co…

Proton Mail has been nominated for a Lovie design award!

ProtonMail’s encrypted email service won the 2016 Lovie Award in the Mobile Utilities & Services category and the People’s Choice Award, recognizing its blend of security, encryption, and user-friendl…

Anonymization explained: If your data is anonymous, why can advertisers still target you?

Proton’s blog clarifies that anonymized data can often be reidentified using as few as 15 data points, especially with AI tools. It distinguishes anonymization from pseudonymization and highlights ris…

Proton’s password manager passes audit by top security firm

How to clear your cache on iPhone and free up storage space

Proton published a guide on clearing iPhone cache, browser data, and app caches to address storage issues and slowdowns. The post highlights manual steps for Safari, Chrome, and popular apps like Inst…

Microsoft Edge keeps all saved passwords unencrypted

Microsoft Edge loads all saved passwords into readable memory immediately upon launch, exposing credentials to memory scraping if a device or session is compromised. The behavior, deemed 'by design' b…

Proton Mail now supports post-quantum encryption

Proton Mail added optional post-quantum encryption (PQC) to all plans, including free, using OpenPGP v6 to generate quantum-resistant keys for new emails. This prepares against future quantum attacks …