Week in the Privacy News 50/2025

Good Monday, friends of privacy!

Another week full of news is in the books. So take a look with us into new Arcium update, Tor's anti-censorship technologies, news from Signal realm and so much more. So as usual, positions yourselves as you feel comfortable and let's delve into it!

New tool of the week

• Arcium has released update to v0.5.1 bringing new fee models, enhanced hash security, improved MPC performance, and better developer tooling

Insights

• People are trying to reclaim their medical health data with Class Actions
• Tor Project deployed and refined a range of anti-censorship technologies
• Proton launches Proton Sheets
• Immigrant-hunting app used by ICE has been removed from Google Store
• OpenAI pledges to turn off app suggestions that looks like ads

Knowledge

• Read guide on using smartphones as a protestr from Privacy Guide
• Signal started beta testing AppImage, Linux version available on all Linux distributors
• European commission fines Musk's X.com for DSA violations
• ZKSync will retire its Ethereum rollup next year
• New Stack's take on why we should love Linux Mint

Inspiration: Going On(Line) an offering of media from the web

• a16z crypto discusses Stabecoins, Bitcoin and Innovation bets with Fidelity CEO Abigail Johnson
• Crypto’s Agentic Future: AI, ZK and Money Networks at Bankless Summit
• Take our own Web3 Privacy Now courses through our Academy

Inspiration: Going Off(Line) an offering of IRL events

*(new/changes in **bold**)*

• Dec 8 - WEB3SEC 2025: Workshop Encouraging Building Better Blockchain Security 2025 Honolulu
• Dec 17 - Prague Logos Circle Prague
• Dec 27-30 - 39th Chaos Communication Congress Hamburg
• Jan 31 - Feb 1 - FOSDEM 2026 Brussels
• Mar 6-7 2026 - Logos Network's Parallel Society Lisabon
• May 5-8 2026 - RightsCon Zambia
• May 8-10 2026 - ETHPrague Prague