Author: Markus Perdrizat
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Decentralized Telegram Mini App
The news of Telegram founder Pavel Durov’s house arrest being lifted and him being allowed to leave France prompted me to figure out how I can write an example Telegram Mini App that only relies on decentralized technologies. After all Pavel Durov was jailed in France because (supposedly) he refuses to censor communication on Telegram,…
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How to avoid being hacked like Bybit
Just over a week ago, Bybit was hacked for nearly $1.5bn: Hackers steal $1.5bn from crypto exchange in ‘biggest digital heist ever’. By now, we understand the hack well enough to summarize updated best practices and lessons learned to reduce the likelihood of similar attacks. But first, a big shout-out to Bybit CEO Ben Zhou…
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Why Bitcoin is Important
Bitcoin is still the best cryptocurrency. Let’s look at what makes Bitcoin different. This is written in simple language so that anyone can read, understand, and explain it to their friends. Let’s dive in! Bitcoin as Sound Money Regular money, like dollars or euros, can lose value over time due to something called inflation. Inflation…
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You’ve been hacked, what now?
You work for a crypto company, project or DAO and someone alerts you that you’ve been hacked. What do you do next? Here’s a quick emergency cheat sheet.
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Crypto 2025 Predictions
Cryptocurrencies are ending the year 2024 on a very high note. Here are my top 2025 predictions for adoption, institutions and technology
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Hosting Update
Next year I’ll be approaching 25 years of blogging, and for the first time ever I made the switch to commercial hosting for the blog. My previous server was getting old, requiring a major Debian update or two. The outdated PHP version made hosting WordPress more and more difficult. So, after much contemplation (a.k.a. procrastination),…
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UniFi update blocking Tor
TLDR: UniFi Network Application 7.4.162 may start blocking Tor, even though the corresponding option is disabled. I just spent a couple hours troubleshooting my Bitcoin Lightning node because suddenly (over night) all channels where down. After a while I realized that, while the Bitcoin node was still connected, it only connected over clearnet and no…
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Apple didn’t get it to work
Apple “decided to not proceed with the proposal for a hybrid client-server approach to CSAM detection for iCloud Photos from a few years ago,” and “concluded it was not practically possible to implement without ultimately imperiling the security and privacy of our users.” This is the confirmation that it’s simply not possible to scan everyone’s…
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Are NFTs securities?
New perspective that I haven’t heard before, better explains why quite a few respectable people argue that (many) NFTs are securities. Great newsletter as usual by Matt Levine. I like to explain crypto initial coin offerings by saying that “they’re like if the Wright Brothers sold air miles to finance inventing the airplane,” so here’s…
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Custody & Post-Trade-Infrastructure
Die HSLU bietet ab Oktober 2023 mit dem CAS Crypto Finance & Cryptocurrencies wieder die Gelegenheit, sich in diesem wichtigen Bereich mit Expertenwissen weiterzubilden. Ich werde das Themen Custody und Post-Trade-Infraktruktur vertiefen, und freue mich jetzt schon wieder auf die anregenden Diskussionen, wenn wir ausgehend von der SWIFT-Architektur herführen, wie das heute und morgen auf…
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