Jonathan Costa

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Jonathan Costa
npub1yg69...wgde
Security & Privacy in ₿itcoin 🇵🇹 🇻🇪 #Bitcoin and not Crypto
DAC8 is a European Union directive that is part of a set of rules created to allow EU countries to exchange tax information with each other. We are at DAC-8 because this directive has already been amended several times over the years. Each version closed a new “door” that allowed tax avoidance or opacity. First it was bank accounts, then foreign income, then digital platforms, and now… crypto-assets. DAC8 entered into force on 1 January 2026 and requires cryptocurrency platforms to collect, identify, and automatically report to tax authorities data on transactions of users resident in the European Union. This includes purchases, sales, swaps between cryptocurrencies, and other movements carried out on centralized and regulated services. In practice, this means that tax authorities can now associate real identities with crypto activity, and that information is shared between EU countries IN REAL TIME. What you do in one country no longer stays “hidden” in another. The impact on the Eurozone is direct: using crypto through centralized platforms now has the same level of tax visibility as a traditional bank account. The official narrative is the fight against tax evasion. The real consequence is less privacy for those who use intermediaries. The technology has not changed. The legal framework has changed. And that will force many people to rethink how they use — or in this case, speculate on — crypto, where they use it, and with what degree of sovereignty. Let’s study Bitcoin 📚
Trezor Safe 7 So… quantum tech isn’t even real-world ready, yet Trezor Safe 7 claims it’s quantum-resistant? I tried to stay quiet, but this dark marketing is unbearable. Heartbreaking to see so-called Bitcoiners pushing this massive lie. First: huge props to Tropic Square 01 – the first fully open-source secure element in hardware. But now comes the deceptive hype. Trezor Safe 7 boasts Bluetooth Low Energy (BLE) – supposedly AES-256 encrypted, mutual auth, secure pairing. Yet BLE runs on 2.4 GHz shared with Wi-Fi, microwaves, everything. Remember KNOB? Forces key downgrade to 1 byte, cracked offline in seconds. Or BIAS in ECC that breaks the signature curve. These are Bluetooth protocol flaws – BR/EDR and BLE – hitting any compliant device: phones, laptops, tablets… and now hardware wallets like Safe 7. I’ve got a full video on daily Bluetooth attacks. But the real lie is quantum-proof. With what curve? PQC like Kyber has zero real-world consensus. Even if it did, you’d need post-quantum keys generated in a side-channel-resistant environment – Trezor uses generic chips with no physical shielding, wide open to fault injection & power analysis. Google Willow is 10^25 x faster at factorization – RSA-2048 dead in a blink. What algorithm proves their resistance? NIST hasn’t finalized PQC, and even if they used it, their chip has zero side-channel protection: attacker with an oscilloscope reads power traces, guesses the nonce, breaks ECDSA. Easy? No. Impossible? No. No true air-gap + pure PSBT = open bridge to the net – app malware, BLE MITM, seed exposed. Want real quantum-proof? Start with true offline: → Coldcard → SeedSigner → Offline phone + BlueWallet Study Bitcoin 📚 image
Now with Macadamia you can send Lightning or e-cash, using the Cashu protocol through iMessage 🤯 This opens up a whole new world: you can choose whether to send sats via Lightning (directly on the network) or e-cash tokens, which are like private digital banknotes that move from wallet to wallet. And yes, you can send it over iMessage! 🔥 Step by step: 1- Install the Macadamia Wallet. 2- Go to Mints and add the URL of a mint. 3- Do Mint: the mint creates a Lightning invoice, you pay it with your Lightning wallet, and you receive e-cash in Macadamia. 4- Now you have an e-cash balance. 5- Click Send: choose whether you want to send Lightning (sats) or e-cash (tokens). 6- If you send via iMessage, what actually goes through is an e-cash token that your contact imports directly into their wallet. ⚡️ Simple, fast, and private. 💡 Remember: they are bearer tokens — treat them like digital banknotes, whoever holds them can spend them.
We are living in a decisive moment. Clean energy—solar, wind, hydro, and in the future even nuclear fusion—will bring unprecedented abundance. But abundance does not mean freedom. The more energy we produce, the more the State will feel the need to control consumption. What would it mean to have the air conditioning running 24 hours a day in the summer?! Imagine this: for a coffee to reach our table, it has been produced, which means energy was spent. In the future, you will have to compensate for that cost! But you won’t be able to drink infinite coffees. This is where CBDCs (Central Bank Digital Currencies) come in: programmable, centralized money, capable of limiting what we buy, when we buy, and how we use it. And if energy will be abundant, you will then have a universal basic income that you can use—but your entire life will have to be 100% controlled. This future is not science fiction. Governments and big corporations are already preparing technological infrastructures for that control: smart grids, biometrics, IoT (Internet of Things), artificial intelligence, and even companies like Palantir involved in global-scale monitoring systems. Now I understand why Nikola Tesla’s idea of wireless alternating current, which was even tested at the famous Wardenclyffe Tower in New York in the 19th century, never went ahead! This technology has existed for decades, but for some reason, it never moved forward. Henry Ford’s idea, 100 years ago, of having money based on energy (since it would be abundant), but outside the reach of the State, may have frightened those who exploit us and use Money as their product. Let’s study Bitcoin 📚