
Insider threat security, DLP, detection-as-code, #bitcoin, https://xitter.cf/t.co/A37KxJzlVt, Athens & Nicosia Bitcoin Meetups
Joined March 2007
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See you this weekend at BTC Balkans in Sofia.
BTC Balkans 2026 is the second edition of the Balkan Bitcoin conference.
The conference is created for people who are just beginning to explore Bitcoin, as well as for advanced users, enthusiasts, and maximalists.
Our goal is to explain Bitcoin in a clear, accessible, and easy-to-understand way — what it is, why it was created, which problems it solves, and how it can be useful in real life.
Is Bitcoin simply a cryptocurrency? A financial instrument? Digital gold? Or something much more?
Over the course of two days, we will explore Bitcoin from different perspectives — technology, money, freedom, independence, business, investment, store of value, and lifestyle.
Community is also a key part of BTC Balkans. That is why we have planned enough time and space for meetings, conversations, and networking. Our ambition is to connect Bitcoin communities not only in Bulgaria, but across the Balkans, bringing together people, ideas, and projects from the region and around the world.
We expect speakers and participants from Greece, Croatia, Slovenia, Montenegro, Turkey, and other countries, both from Europe and beyond.
What to expect:
🎤 Two main halls for talks, presentations, and panel discussions
🎓 An additional beginner-friendly hall with lectures, training sessions, and practical workshops
🟠 An Orange Zone with exhibition booths, drinks, music, games, and space for meetings and conversations
🤝 Networking and meetings with speakers, companies, Bitcoin projects, and people from the community
👨👩👧 A kids’ corner for the youngest Bitcoin enthusiasts
Whether you are taking your first steps into the world of Bitcoin or have been part of it for years, BTC Balkans is a place for learning, discussions, new connections, and sharing ideas.
btcbalkans.com/en
Chrome 152 and Edge 153 introduced custom HTTP Header Injection! This means you can prevent users from connecting to anonymous, personal or foreign-tenant accounts on ChatGPT, Claude, Google, Microsoft, Slack, Dropbox and so on by applying Tenant Controls. You can deploy the HttpHeaderInjection setting across your organization using Intune, Microsoft Edge or Chrome Enterprise policies. Wrote up about Tenant Controls in linkedin.com/pulse/access-fo…
ChatGPT (Business) now reads Purview-encrypted files! You no longer have to choose between Purview file encryption and ChatGPT document ingestion.
Dimitris Tsapakidis retweeted
Hash-Based Signature Schemes Explained
Part 1: WOTS (Winternitz One-Time Signatures)
Dimitris Tsapakidis retweeted
CLAUDE FOUND THE SEEDS
anthropic.com/research/ecdsa…
The Greek government proposes 10% tax on crypto capital gains with an amnesty on past gains (i.e. no penalties beyond the 10% tax) and €500 de minimis exemption. The proposed law is up for public consultation at "opengov.gr/minfin/wp-content…Σχέδιο-Νόμου-Συλλογικές-Επενδύσεις.pdf"
Στο επόμενο Bitcoin meetup της Αθήνας στις 30 Οκτ ο φοροτεχνικός Κώστας Νανόπουλος και ο δικηγόρος Βαγγέλης Αηδόνης θα απαντήσουν σε ερωτήσεις για τη φορολόγηση των κρυπτονομισμάτων στην Ελλάδα: meetup.com/blockchaingreece-…
Dimitris Tsapakidis retweeted
The Greek government proposes 10% tax on crypto capital gains with an amnesty on past gains (i.e. no penalties beyond the 10% tax) and €500 de minimis exemption. The proposed law is up for public consultation at "opengov.gr/minfin/wp-content…Σχέδιο-Νόμου-Συλλογικές-Επενδύσεις.pdf"
Dimitris Tsapakidis retweeted
Corrolary: if you think a proprietary app (Facebook, Whatsapp, ...) is spying on you, especially if it's supposedly recording your conversations to use for targeted advertisement, it's never been easier to check.
Everything is now "source-available". No proprietary algorithms exist.
"Grab the apk from my phone in USB debug mode connected to this computer using adb. Decompile, analyze how XXX works, give me auditt. Prepare an independent implementation."
DeepSeek V4.1 Flash does this extremely cheap. Then you can verify with more expensive model if something is not 100% right.
It does not have to be bytecode, I see a bunch of assembler in the outputs, it's just reading the functions from native libraries.
Dimitris Tsapakidis retweeted
Έχει βουήξει η υφήλιος από το δημοσίευμα της WSJ ότι η #Γκίλφοϊλ είπε στους δικούς μας να παραμείνουν καλά παιδιά αγοράζοντας σε υψηλές τιμές 🇺🇸 LNG (μέσω Εξάρχου/Aktor) ώστε να μη ρίξουν την κυβέρνηση όπως έκαναν με τη 🇷🇴. Στην 🇬🇷 το επιβεβαιώνουμε δια τις απουσίας της είδησης..
Amazing detail in this @wsj article about Kimberly Guilfoyle, US ambassador to Greece: she told a Greek minister, in a conversation about the collapse of the Romanian government,“We can do that to any country we want. We can do that here."
wsj.com/articles/kimberly-gu…
Dimitris Tsapakidis retweeted
With 360 Bitcoin wrench attacks cataloged, it's time to take the archive to the next level. Over the weekend I clanked out this interactive dashboard; feedback is welcome!
jlopp.github.io/physical-bit…
Dimitris Tsapakidis retweeted
Explore the pros/cons of this arrangement and many others, to uncover your optimized multisig arrangement:
unchained.com/bitcoin-multis…
Dimitris Tsapakidis retweeted
Εσύ πώς ενημερώνεσαι για τα του Δήμου σου;
Πλέον έχεις τον Νότη, έναν πάρα πολύ ενημερωμένο AI γείτονα που σε ενημερώνει όταν κάτι σε αφορά.
Dimitris Tsapakidis retweeted
The first car to park on the trailer wins , I’ve never been so invested in a sport like this
Dimitris Tsapakidis retweeted
.@PrimeministerGR Με @CommonPrefix και @poddotnetwork στήσαμε στην Αθήνα 2 εταιρείες 50+ ανθρώπων που καινοτομούν στα αποκεντρωμένα χρηματοοικονομικά διεθνώς, προσελκύωντας διεθνές tech ταλέντο στην Ελλάδα. Βοηθήστε μας οι talent/nomad visas να παίρνουν λιγότερο από 2 χρόνια! 🙏🏼




























