
Proton CTO. Former experimental particle physicist. Opinions are my own. @butlerb.art BlueSky, @bartbutler@infosec.exchange
Joined March 2010
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Bart Butler retweeted
Last week, Proton’s CTO, @BartCButler, joined @SwissEmbassyUSA, @NEDemocracy, and @accessnow for a roundtable about the role of privacy tools in protecting human rights and resisting digital repression.
Read more 👉 swissimpactusa.com/combating…
Bart Butler retweeted
This #ValentinesDay, don't let Big Tech catch you unprotected.
How do you avoid unexpected surprises?
Bart Butler retweeted
Starting today, Proton Pass Plus subscribers can enable Proton Sentinel for advanced account protection.
Proton Pass Plus subscribers now have access to Proton Sentinel — our high-security program for account protection.
🛡️ Protect against account takeovers
🧑💻 Combined power of AI & human security analysts
🔄 Continuous monitoring & enhanced detection
Around the clock protection for your most sensitive account, even if an attacker has stolen your Proton credentials.
proton.me/blog/sentinel-incl…
Bart Butler retweeted
🔥 Save the date! Next Thursday, December 7, at 12 PM ET / 6 PM CET, Proton’s founder and CEO @andyyen and CTO @BartCButler go live on @Reddit’s r/IAmA. You can ask them anything about #Proton and its services @ProtonMail, @ProtonVPN, @Proton_Pass, @ProtonDrive and @SimpleLogin.
reddit.com/r/iama
#askemeanything #ama
Bart Butler retweeted
Usually you shouldn't share passwords, but if you have to for some reason, this is the way to do it. It also allows 2FA to be shared/updated on multiple devices at the same time.
Thanks to your feedback, Secure Password Sharing is now available in @Proton_Pass!
Share easily:
🔑 Logins/Passwords
💳 Credit Cards
🗒️ Notes
🥸 Aliases
Proton Pass lets you share with multiple people, even non-Proton users: proton.me/blog/password-shar…
Bart Butler retweeted
Standardized, interoperable #encryption is key for a better internet.
Proton and the @IETF’s OpenPGP Working Group are pleased to announce a crypto refresh of the #OpenPGP standard. Standardization today ensures interoperability tomorrow.
More here ➡️ proton.me/blog/openpgp-crypt….
Bart Butler retweeted
Amazing to see authenticated encryption get standardized in OpenPGP. I wrote an opt-in AES_GCM mode for OpenPGP.js using native WebCrypto in 2016 and never thought it would get through since the GPG devs didn’t like GCM. Congrats @BartCButler & team!
github.com/openpgpjs/openpgp…
Standardized, interoperable #encryption is key for a better internet.
Proton and the @IETF’s OpenPGP Working Group are pleased to announce a crypto refresh of the #OpenPGP standard. Standardization today ensures interoperability tomorrow.
More here ➡️ proton.me/blog/openpgp-crypt….
Bart Butler retweeted
Pro-tip: If your ship is heeling over like this, check for leaks. (I know these things because I'm an Admiral.)
#Ukraine: Overnight, Ukrainian USVs (Kamikaze Sea Drones) attacked the Russian port of Novorossiysk, hitting the "Olenegorsky Gornyk" Project 775 large landing ship of the Russian navy- causing it to list due to internal flooding.
The full extent of the damage is so far unclear.
Bart Butler retweeted
Lol the Twitter webapp is trying to load something from its internal graphql API and getting a 429 Too Many Requests response. Twitter's Javascript ignores the error and tries again, hundreds of times a second.
Twitter is DDOSing itself.
Bart Butler retweeted
Thank god somebody is trying to make me spend less time on Twitter. Weird that it’s the owner of Twitter.
Bart Butler retweeted
💥 🚀 Another milestone has been reached at @ProtonPrivacy Today we officially launch our new product, Proton Pass. The Open-source and encrypted password manager with a crazy features, "Hide-my-email aliases" to help protect your online identity
Today, we're launching @Proton_Pass for everyone. Like other Proton services, it’s free, open-source, and end-to-end encrypted. This has been the most popular community request, and we’re happy to finally bring it to you today.
Learn more here: proton.me/blog/proton-pass-l…
Bart Butler retweeted
Proton has launched @Proton_Pass , an encrypted password manager that can also create hide-my-email aliases. Available as a browser extension and on iOS and Android devices. An unlimited plan is available in discount for $1/month until the end of July.
alternativeto.net/news/2023/…
Bart Butler retweeted
Proton launches its password manager Proton Pass tcrn.ch/44k2ZIi by @romaindillet
Bart Butler retweeted
Proton founder @andyyen is speaking at the #CollisionConf at 3:05 PM EST today on how to reclaim your online #privacy & why privacy-first products like @ProtonPass matter. Find him at the Enercare Centre on the FullSTK stage with @reporterstrong. collisionconf.com/schedule/c…
Bart Butler retweeted
The day has arrived. Proton Pass is now out of beta and available for everyone. #iOS and #Android mobile apps are out, along with @Firefox and #Chrome/#Edge/@Brave browser extensions. Learn about what makes #ProtonPass special in our launch blog post: proton.me/blog/proton-pass-l…
Bart Butler retweeted
Proton is community-driven, and #ProtonPass is no different. Discuss and request new features here: reddit.com/r/ProtonPass. Follow @Proton_Pass on Twitter to get the latest news and updates. Proton is for the community, by the community, and we're here to serve you.
Bart Butler retweeted
Finally, to get @Proton_Pass and learn more about all that it can do, visit the newly launched #ProtonPass website: proton.me/pass.
Bart Butler retweeted
Today, we're launching @Proton_Pass for everyone. Like other Proton services, it’s free, open-source, and end-to-end encrypted. This has been the most popular community request, and we’re happy to finally bring it to you today.
Learn more here: proton.me/blog/proton-pass-l…
Bart Butler retweeted
Welcome @Apple! Affirming the longstanding expert consensus:
Encryption works for all or it’s broken for all. There’s no safe, private way to conduct mass surveillance. & no amount of magical thinking or specious claims will alter this stubborn reality.
bbc.com/news/technology-6602…






















