Jonathan Costa

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Jonathan Costa
bac@nostrplebs.com
npub1yg69...wgde
Security & Privacy in ₿itcoin 🇵🇹 🇻🇪 #Bitcoin and not Crypto

Notes (20)

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
2025-10-24 11:15:07 from 1 relay(s) View Thread →
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. https://blossom.primal.net/1ac9d8e37df4774d38efc6ad2be82c30e93615bd2243f8088a76a89023c4a789.mov
2025-09-25 22:23:24 from 1 relay(s) View Thread →
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 📚 https://blossom.primal.net/6c66c27e062e42ce03e5d350ddddf0e74f0a365636b4a9a263feadd166e1f688.mov
2025-09-23 21:35:43 from 1 relay(s) View Thread →
Bitcoin is the way 😎
2025-08-10 10:38:05 from 1 relay(s) View Thread →
Great work 👏🏻👏🏻👏🏻
2025-08-09 18:07:50 from 1 relay(s) View Thread →
Hi guys 🙂 Who is the Bitcoiner who will donate 1000 Satoshis to buy a Coldcard Q for my Bitcoin Academy Club school? Hello everyone, this post serves two purposes. First, to help a student within the Bitcoin Academy Club who cannot afford to buy a Coldcard, and this is a way I found for us to donate a Coldcard Q to this student. The second purpose of this post or donation request is to show people how the Bitcoiner community is united and stands up for causes within the Bitcoiner ecosystem — in other words, it defends and supports causes that are related to Bitcoin. Thank you. image lnbc5u1p5fwvttpp5vy77jcawm9d6emv8j4wgcut5aelt52yn8cqgtyskhz63qx3hj2sqdqlgdhkcerrv9exgffjxpzx7mnpw35k7mscqzzsxqrrs0sp5pjlfnqclqlzf23xxy9ll7fszdgrwedt3dff4ew5u897nvukrl99q9qxpqysgq9gmjz4dxucfnkvqwa3nweevv6x2tsxtmp7s66r50wchffac22xl40h2zequ2l5t3vlrchsw0u3jqutdal89nteafmkfchg6puwz64xqqrwrvc4
2025-08-09 11:31:37 from 1 relay(s) View Thread →
Bitcoin is the way 🛣️
2025-08-05 13:47:04 from 1 relay(s) View Thread →
Use Bitcoin, don’t speculate. WHAT’S YOUR OPINION??? Mine: 👇🏻 Bitcoin was created to be used! Bitcoin was designed to solve one of the core problems in the world today: the constant loss of purchasing power in fiat currency. I say “currency” because I can’t even call it “money” — it has never truly served that purpose since it was created! But Bitcoin was designed to be money. Money that preserves the VALUE of the things we can buy with it! But for that to happen, it needs to be USED, not speculated on or treated as a shortcut to get rich in fiat terms. Bitcoin is not an investment, nor is it just a “store of value”! Yes… in the fiat world we do need something that preserves the value of what we buy with fiat currency. That’s why we’ve always been forced to hold things like gold, or choose the “least bad” currency like the dollar, to act as a store of value. We’ve always been forced to invest our own money just to survive. But with Bitcoin, none of that will be necessary! In a Bitcoin-based model, value is preserved through the use of pure Sound Money, with the right characteristics, as defined in A Peer-to-Peer Electronic Cash System – Bitcoin. Value is preserved in the goods, products, and services we’re able to buy with real money like Bitcoin. If someone still hasn’t understood that using Bitcoin (the purest form of money ever invented) is the key to truly freeing ourselves from the shackles of fiat inflation and purchasing power loss… …then they’re still far from understanding the true reason Bitcoin exists. I believe we are still far from grasping what Bitcoin is really bringing to our lives. But once we do… that’s when no one will want to exchange their Bitcoin for Euros or Dollars — and Bitcoin will become the global unit of account and medium of exchange. Let’s study Bitcoin. 📚 ⸻ #soundmoney #bitcoinportugal #bitcoinbrasil #bitcoinangola #money #personalfinance💰 #bitcoinacademyclub image
2025-07-14 22:45:37 from 1 relay(s) View Thread →
Will Europe be the new China? 🇨🇳 🤔 Christine Lagarde stated that the digital euro will be positive for citizens if implemented like in China. We are rapidly moving toward the implementation of a Chinese-style ideology in Europe! The Chinese model of digital currency allows for: • complete tracking of all transactions; • the imposition of rules on where, when, and how money can be used; • the possibility for funds to expire; • account blocking and exclusion from the system for ideological or political reasons (whether on social media or anywhere on or off the internet). When Lagarde talks about following this model, what she is proposing is a programmable currency, subject to central criteria, with no guarantee of individual freedom. The digital euro is presented as innovation, but its subtext is clear: total financial control. It is the end of monetary privacy and individual sovereignty. Bitcoin is the only real alternative. There are no owners of the money. You are the only owner of your money. It cannot be censored. It cannot be manipulated. It is a decentralized system that protects the economic rights of the individual against abuses of power. At this historic moment, the choice is simple: A system of totalitarian state control or a free, impartial, fair, and verifiable monetary system. Study Bitcoin. Before the state tells you when, how, and if you can use your own money. . . . . . . . . . . . #Bitcoin #DigitalEuro #CBDC #Privacy #FinancialFreedom #ChristineLagarde #reelsportugal #bitcoinacademyclub https://blossom.primal.net/f5dcd8354254902cc87b7c9ec4d3dd11ceaca5ddc68db90dc05c2678f73263bb.mov
2025-07-06 09:46:55 from 1 relay(s) View Thread →
Bitcoin Itself Is NOT a Store of Value Bitcoin only becomes a store of value when compared to the FIAT system. In the Fiat system, we’re forced to look for investments or protection that at least keep up with inflation. In a system where Bitcoin is the unit of account and medium of exchange, that need for investment or protection disappears. Bitcoin simply plays the role that money is supposed to play, restoring the value of what we’re able to buy with it and preserving, over time, the value stored in goods, products, and services, which was taken from us by FIAT “money.” I’m hopeful that Bitcoin will stop being seen as an investment or store of value and start being seen simply as money. That would basically mean the Fiat system has collapsed. image
2025-05-05 09:18:55 from 1 relay(s) View Thread →
Do You Want Sovereignty in #Bitcoin? Follow these essential steps to free yourself from the traditional financial system and take full control of your money: 1 - Create a Seed Phrase Offline 🛜📴 Build your sovereignty. Generate your 12 or 24-word seed phrase without ever exposing it to the internet—NEVER use apps like #bluewallet for this! This is the only way to ensure that no one but you has access to your bitcoins. 2 - Export the Public Key Offline 🛜📴 Your seed phrase should never touch the internet. Export only the public key while still offline to generate addresses and check balances, always keeping your private key protected. 3 - Buy Bitcoin Without KYC 🛒 Never sell or use your personal data to buy Bitcoin! Use peer-to-peer (P2P) services like #peachbitcoin to preserve your privacy and avoid future censorship (just like what happened to people’s gold in 1971). 4 - Create and Sign Transactions Offline 🔏 Learn how to move your bitcoins securely. Sign transactions offline in your Bitcoin vault and only then broadcast them online, ensuring total protection of your seed phrase. 5 - Run a Bitcoin Node 📡 Become an active and VITAL part of the network! Running a node means: ✅ Validating your own transactions and blocks without relying on third parties ✅ Checking any transaction directly, without censorship ✅ Ensuring Bitcoin continues to exist by maintaining an original copy of the blockchain ✅ Participating in the network consensus and deciding which rules to follow 6 - Get a Mini-Miner ⛏ Decentralizing the hash rate is also up to us! With a mini-miner at home, you can contribute to the network’s security and even have a chance to mine a 3.125 BTC block. 7 - Open a Lightning Payment Channel ⚡ Having your own liquidity on Bitcoin’s second layer means you can make instant payments anywhere in the world—with no intermediaries, no censorship, and 100% sovereignty. 🚀 True sovereignty starts here! Take control of your money with Bitcoin. Don’t let a bank do it for you! Study Bitcoin 📚 . . . . . #bitcoinacademyclub #bitcoinportugal #bitcoin https://m.primal.net/Ptyd.mov
2025-03-26 17:18:39 from 1 relay(s) View Thread →
Bitcoin’s decentralization and security start at home! ⚡ Today, most of Bitcoin’s computing power is concentrated in just 4 or 5 major mining pools. But it doesn’t have to be this way. Mini-miners are the key to changing this! 🔑 By running a small miner at home, you help distribute the hashrate, making the network more secure, censorship-resistant, and truly decentralized – just as it was meant to be. 📡💎 The future of Bitcoin is in our hands. Mining isn’t just for the big players – it’s for everyone! 🚀 👉 Do you have or want to get a mini-miner? Let me know in the comments! 👇🔥 https://m.primal.net/PlsN.mov
2025-03-19 21:51:53 from 1 relay(s) View Thread →
🚨 YOUR MONEY IS FUNDING THE SYSTEM THAT’S ROBBING YOU! 🚨 Every euro you leave in the bank isn’t just losing value due to inflation. It’s being used to fund the financial system that enslaves you. Banks don’t work like safes where your money is stored. They use your money to create more money out of thin air. How? Through the fractional reserve system. How the theft works: 🔹 When you deposit €1,000 in the bank, do you think that money stays there? No. 🔹 If the central bank only requires 10% reserves, the bank keeps just €100 and lends out the other €900. 🔹 Those €900 get deposited back into the system and the bank lends even more money from that deposit. 🔹 In the end, your original €1,000 turns into €10,000 of money created out of thin air, purely based on debt. What happens when a crisis hits and everyone tries to withdraw their money? There isn’t enough real money. Because the bank never actually had it. It was all multiplied through debt and promises. Now imagine what will happen when CBDCs are implemented. Banks won’t even need to go bankrupt anymore because money will be 100% digital and controlled by the state. They will be able to: ❌ Freeze your balance with a single click ❌ Control what you can and can’t buy ❌ Automatically deduct taxes from your account without warning ❌ Confiscate your money whenever the government “needs” more funds If you want to stop funding this fraudulent system, do the following: ✅ Withdraw from the bank what you’re not willing to lose ✅ Convert euros and dollars (fiat) into Bitcoin ✅ Use money that can’t be inflated or manipulated ✅ Take back your financial sovereignty Every euro you leave in the bank is a vote for this corrupt system. Every satoshi you buy is a vote for your true financial freedom. Bitcoin doesn’t need fractional reserves. Bitcoin is scarce, decentralized, and impossible for governments to control. 🚨 Time is running out. 🚨 EXIT THE SYSTEM WHILE YOU STILL CAN. image
2025-03-12 16:32:35 from 1 relay(s) View Thread →