Le blog Certified Crypto Market
La crypto, expliquée.
Les arnaques, dévoilées.
Des guides clairs pour protéger votre argent : comment étudier un projet, repérer une arnaque, stocker vos cryptos en sécurité et comprendre chaque grande cryptomonnaie.
66 articles pour « wal » · effacer
Decentralized Perpetual Exchanges Explained
A perp DEX lets you trade perpetual futures from your own wallet. Learn how decentralized perpetual exchanges work, their designs, fees and key risks.
13 oct. 2026 · 4 min de lecture
Ledger Investigates Tampering of Devices Sold by CryptoBilis, Reseller Halts Sales
Ledger has reported an investigation into 'spy' chip implants in devices sold by reseller CryptoBilis, which allegedly transmitted wallet keys over mobile networks. The reseller has ceased sales, and other hardware wallet manufacturers have
13 oct. 2026
Ledger Confirms Hardware Implant in Reseller Units, MediaMarkt Suspends Sales
Ledger has confirmed that certain hardware wallet units sold by the reseller CryptoBilis contained a malicious hardware implant designed to steal recovery phrases. This discovery has led to MediaMarkt suspending sales of Ledger products in
13 oct. 2026
Discord Scams: Compromised Servers and Fake Mint Links
Discord crypto scams use hacked servers, fake mint links and impostor admins to drain wallets. Learn how they work, the warning signs and how to stay safe.
13 oct. 2026 · 4 min de lecture
Bitcoin Whale Awakens After Four Years, Moves $378 Million in BTC
A Bitcoin wallet, dormant since March 2020, recently moved approximately $378 million worth of BTC. The wallet initially received 4,582 BTC just prior to the significant market downturn of March 2020.
13 oct. 2026
Paper Wallets: Why They're No Longer Recommended
A paper wallet prints a crypto private key on paper. Learn why paper wallets fell out of favor, their risks and how to safely move funds off an old one.
13 oct. 2026 · 4 min de lecture
Ledger Confirms Unauthorized Hardware Implant in Device Linked to CryptoBilis Reseller
Hardware wallet manufacturer Ledger has confirmed an unauthorized hardware implant in at least one device sold by CryptoBilis, a Southeast Asian reseller. The incident is reportedly isolated to this reseller, with Ledger's internal systems
12 oct. 2026
How Wallet Recovery Works
Wallet recovery restores access to your crypto with a seed phrase, social recovery or backups. Learn how each method works, common pitfalls and recovery scams.
11 oct. 2026 · 4 min de lecture
What Is Monero (XMR)? How It Works, Use Cases and Risks
What is Monero? A plain-English guide to XMR: how its privacy works, mining and tail emission, real uses, regulatory risks and how to avoid fake wallets.
11 oct. 2026 · 4 min de lecture
Wallet Permissions and Connected Sites
What wallet connected sites can and cannot do, how connections differ from token approvals and signatures, and how to review and remove permissions safely.
10 oct. 2026 · 4 min de lecture
Bitcoin Stabilizes Near $82,500 Amid Geopolitical News and Security Concerns
Bitcoin has stabilized around $82,500 following reports of a potential hardware wallet exploit and geopolitical developments. The cryptocurrency remains down approximately 4% for the week, while Ether has seen a larger decline.
10 oct. 2026
How to Build and Track a Crypto Portfolio
Use a crypto portfolio tracker the right way: set goals, size positions, record trades and track performance across wallets and exchanges without exposing keys.
10 oct. 2026 · 4 min de lecture
Why Your Wallet Shows Different Addresses on Different Chains
Why your wallet address differs on different chains, why EVM chains share one address, and how to avoid sending funds to the wrong network by mistake.
9 oct. 2026 · 5 min de lecture
Ledger Investigates Wallet Drains Affecting CryptoBilis Customers in Southeast Asia
Hardware wallet firm Ledger is investigating reports of fund losses, potentially exceeding $86 million, from users who purchased devices from reseller CryptoBilis. The incidents primarily affect customers in Southeast Asia, with assets repo
9 oct. 2026
Sanctions and Crypto: How Blacklisted Addresses Work
Crypto sanctions can put wallet addresses on government blacklists. Learn how sanctioned addresses work, how stablecoins freeze funds and how to stay compliant.
8 oct. 2026 · 4 min de lecture
Soulbound Tokens Explained
A soulbound token is a non-transferable NFT tied to one wallet. Learn how SBTs work, real use cases like credentials and attendance, and their limitations.
8 oct. 2026 · 4 min de lecture
Samsung Wallet Integrates USDC Transfers on Solana for US Galaxy Users
Samsung Wallet will enable USDC transfers for eligible US Galaxy device users starting in late October, utilizing the Solana blockchain. This feature facilitates cross-border remittances and transfers to bank accounts in over 60 countries.
8 oct. 2026
Wallet Derivation Paths Explained
A derivation path tells a wallet which addresses to create from your seed phrase. Learn how paths like m/44'/60'/0'/0/0 work and how to fix missing balances.
8 oct. 2026 · 5 min de lecture