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Proton Profile picture
@ProtonPrivacy
May 11, 2020 • 4 tweets • 2 min read • Read on X
The "Halvening" is upon us. Starting tonight, Bitcoin cut its reward for completing a block in half, from 12.5 #BTC to 6.25. The last time this happened in 2016, it was a prelude to a leap in value. Continue reading to learn how to buy and secure Bitcoin. #BitcoinHalving2020
Bitcoin was created in 2009, but many people still do not understand the original cryptocurrency. We offer a practical explanation of what Bitcoin is, as well as where to buy it and how to store it:
protonmail.com/blog/how-to-bu…
There are countless examples of cryptocurrency exchanges being hacked and Bitcoin being stolen. We explain what you can do to take your Bitcoin security into your own hands. protonmail.com/blog/how-to-ke…
It is also possible to pay for ProtonMail with #Bitcoin. Details can be found in our guide here: protonmail.com/support/knowle… Proton accumulated BTC early, giving us financial strength over the years, and we continue to hodl BTC for diversification purposes.

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More from @ProtonPrivacy

Proton Profile picture
Sep 2
Imagine this: you open an email from your inbox and start reading.

In the background, text is fed to your AI extension, making it delete every email from your inbox.

This isn’t a dream; with AI agents and prompt injection attacks, it’s currently a possibility.

1/5 Image
Anthropic recently announced Claude for Chrome, a browser-based AI agent that can take actions on behalf of users.

The extension is currently only available as a preview to 1,000 subscribers on Anthropic's Max plan.

The limited release is due to security concerns.

2/5
The company has tested 123 cases representing 29 different scenarios.

They found a 23.6% success rate when browsers had no safety mitigations in place - mitigations managed to reduce this to 11.2%.

Make no mistake, there are real risks associated with using these tools.

3/5
Read 5 tweets
Proton Profile picture
Sep 1
Your face is yours, but Big Tech doesn’t want it to stay that way.

It’s time for a deep dive into facial recognition. ⏳

Governments, advertisers, and tech companies are finding new ways to capture, analyze, and profit from the most personal part of who you are.

1/7
Facial recognition technology is biometric software that identifies/verifies a person by analyzing their facial features.

Your scanned face is compared with a database, which contains images from government databases, social media, or the open web.

2/7
When matched, a range of personal data can be pulled up, often without your knowledge or consent.

Tech like this isn’t confined to police stations or secure areas; it is being used in airports, apps, and devices.

Privacy in public spaces is becoming harder and harder.

3/7
Read 7 tweets
Proton Profile picture
Aug 29
Switzerland prides itself on independence, yet 68% of listed firms run on US email (the gateway to the whole tech stack). 🇨🇭

Independence is hard if your infrastructure is controlled abroad.

Let’s talk about it 👇

1/5 Image
Why it matters

🚩 Foreign laws reach Swiss data (CLOUD Act)
🚩 Geopolitical leverage over critical sectors
🚩 Less control over data storage and processing
🚩 Swiss data can be used to train AI
🚩 Limits Swiss innovation

For a nation built on independence and neutrality, this is a massive vulnerability.

2/5
Which Swiss sectors rely most on US tech?

Out of the 68% Swiss businesses that rely on US email services, several sensitive sectors are even more dependent:

🧰 Utilities 80%
🏥 Health care 77%
💊 Pharma & biotech 77%
💻 Software and IT services 75%
⚡️ Energy 67%

Full report →

3/5proton.me/business/europ…
Read 5 tweets
Proton Profile picture
Aug 20
Ever had someone give you something and not want to give it back? Data brokers feel the same…

An investigation by The Markup found that 35 registered Californian data brokers have noindex code on opt-out & data deletion pages.

Why? To keep them off search engines.

1/6 Image
That's not the only way that brokers create obstacles to user privacy.

An analysis of 750 US-based data broker groups revealed that 100s of brokers registered in one state but failed to register in another, despite the legal requirement.

Most of them operate nationally...

2/6
Another study found that 43% of data brokers fail to respond to requests; the California Consumer Privacy Act (CCPA) requires them to do so within 45 days.

Even when responding, many impose extra hurdles, such as requiring people to share even more personal data.

3/6
Read 6 tweets
Proton Profile picture
Aug 18
Perplexity’s $34B bid for Chrome is still not nearly as perplexing as what they’re planning to do with your browsing data.

Let’s take a look. 👇 🧵

1/7 Image
For context, earlier this year, when Perplexity CEO @AravSrinivas confronted us, we asked him to vow that his company would never monetize user data.

He unfortunately never got back to us, and instead went on to create Comet, a privacy-invasive AI browser.

2/7 Image
According to their privacy policy, Comet sees:

• URLs of the websites you visit
• The number of windows and tabs you have open
• Your search queries
• What you download
• Cookies from websites

…and can even read your emails.

3/7
Read 7 tweets
Proton Profile picture
Aug 5
Europe outsourced its digital backbone for decades.

Today, that choice has become a strategic liability.

Our new study shows how deep that dependency runs — starting with email, the gateway to every company’s stack.

Let's unpack it 👇
1 / 8 Image
Over 74% of all publicly listed European companies run their email, and therefore cloud, docs, AI workflows, on Google or Microsoft.

That puts strategy decks, budgets, daily ops, and sensitive client data on servers governed by foreign laws.

2 / 8 Image
When your company relies on US tech companies, you're not just outsourcing tech.

You're exposing your organization to strategic risks that are out of your control:

→ AI models trained on your company’s data
→ CLOUD Act–enabled surveillance
→ No say over data location
→ Critical sectors exposed to geopolitics

3 / 8
Read 8 tweets

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