Stefano Guandalini

Seasoned hacker; data privacy and security are my main concerns.
Head of QA @ ProtonVPN.

[Stefano Guandalini @guandalf]

A new member of the family!

[Stefano Guandalini @guandalf]

https://t.co/YarqGxaU6n

[Stefano Guandalini @guandalf]

https://t.co/4oQtuhCVcg

[Stefano Guandalini @guandalf]

We’ve just launched the new Proton Mail apps for iOS and Android, rebuilt from the ground up to be faster, easier to use, and available with the same features across platforms.

This was a huge team effort, and I’m proud of everyone who worked on it!

→ https://t.co/xDLcjAGjzP

[Stefano Guandalini @guandalf]

You'll be training their AI without consent by default.

[Stefano Guandalini @guandalf]

Is WhatsApp really safe?

https://t.co/wkQhxqidlr

[Stefano Guandalini @guandalf]

US vendor concentration is a risk exposure, not just a line item or an EU problem.

https://t.co/fmsSOoiHBr

[Stefano Guandalini @guandalf]

“Sovereign cloud” isn’t a marketing slogan. It’s encryption, jurisdiction, and controls you can audit. Choose your company's tech stack wisely. This research by @ProtonPrivacy shows you why it matters. https://t.co/q9UMXmEdvo

[Proton @ProtonPrivacy]

Who runs your inbox runs your org.

New country snapshots show how deep US-tech dependence goes in 🇩🇪🇦🇹🇮🇹🇧🇪🇱🇺🇳🇱 and why it matters.

Baseline: 74% of Europe’s listed companies depend on US tech for email/security (the gateway to cloud, docs, identity, and security).

[Stefano Guandalini @guandalf]

You are using WhatsApp and you feel safe with that?

https://t.co/wkQhxqidlr

[Stefano Guandalini @guandalf]

Genius!

https://t.co/KBTla9oD4w

[Stefano Guandalini @guandalf]

We’re hiring a Lead Backend Engineer for Marketing Technology in Barcelona, London, or Paris!

Work with PHP/Python, SQL & SDKs to build and secure Proton’s marketing tech stack, improving privacy, conversion, and efficiency.

Apply now 👇 https://t.co/0WGoHLFuW4

[Stefano Guandalini @guandalf]

Everybody love test posts. Don't you?

[Stefano Guandalini @guandalf]

Non à la surveillance de masse : STOP Chat Control et la fin du chiffrement - Sign the Petition! https://t.co/XTbBuo2hYX via @Change