Les CFD sont des instruments complexes et comportent un risque élevé de perdre rapidement de l’argent en raison de l’effet de levier. Vous devriez vous demander si vous comprenez le fonctionnement des CFD avant d’investir.

La prochaine grande menace pour la crypto ? Les ordinateurs quantiques pourraient pirater le Bitcoin d'ici 2029

Les nouvelles avancées en informatique quantique poussent les entreprises de crypto-monnaies à se préparer à un défi de sécurité potentiel qui pourrait remodeler l'industrie.

Le secteur des crypto-monnaies intensifie ses efforts pour défendre les blockchains et les portefeuilles numériques contre les futures attaques de l'informatique quantique. Une nouvelle recherche de Google suggère que des machines quantiques puissantes pourraient briser les méthodes de chiffrement actuelles plus tôt que prévu, ce qui suscite des inquiétudes sur l'ensemble du marché des crypto-monnaies, estimé à 2 000 milliards de dollars.

Les dirigeants du secteur affirment que la menace ne se concrétisera pas avant plusieurs années, mais les préparatifs sont déjà en cours.

Détails clés

Google estime que les ordinateurs quantiques capables de briser le chiffrement actuel pourraient arriver d'ici 2029, soit plus tôt que les prévisions précédentes qui tablaient sur au moins une décennie.

La plupart des blockchains, y compris Bitcoin et Ethereum, s'appuient sur une cryptographie vieille de plusieurs décennies pour sécuriser les transactions. Les experts préviennent qu'un ordinateur quantique suffisamment avancé pourrait dériver des clés privées à partir de clés publiques, permettant ainsi à des pirates de voler des fonds et d'approuver des transactions frauduleuses.

Le Bitcoin est considéré comme particulièrement exposé en raison de son long historique de transactions et de son grand nombre de clés publiques visibles. Les recherches suggèrent qu'environ 35 % de l'offre en circulation de Bitcoin pourrait être vulnérable, tandis que certaines études évaluent ce chiffre à près de 50 %.

Les principaux réseaux de blockchain n'ont pas encore mis en œuvre de chiffrement résistant au quantique. La Fondation Ethereum vise une protection complète d'ici 2029, tandis que la Fondation Algorand prévoit d'introduire des comptes post-quantiques plus tard cette année.

Réaction du marché

Le risque croissant a déjà influencé le sentiment des investisseurs. Jefferies a retiré une allocation de 10 % en Bitcoin de son portefeuille modèle plus tôt cette année, citant la menace à long terme posée par l'informatique quantique.

Pourquoi cela importe

Une attaque quantique réussie sur une crypto-monnaie majeure pourrait déclencher des ventes massives, ébranler la confiance et provoquer des ondes de choc sur les marchés des actifs numériques.

L'industrie de la crypto a encore le temps de se préparer, mais la course à la mise à niveau de la sécurité de la blockchain a commencé. Les traders surveilleront si les développeurs peuvent agir assez rapidement avant que l'informatique quantique n'atteigne un point de bascule.

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Source : Reuters

Heure : 10h30 EEST

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Risk Warning: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 72.6% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

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© 2026 Trade Quo. All rights reserved.

This website provides content by group of companies, which include:

Tradequomarkets Financial Services L.L.C is a registered, authorised and regulated company by the Securities and Commodities Authority (SCA) of the United Arab Emirates, with License No. 20200000320 Category 5, to carry out regulated activities of Financial Consultations and Introduction. Its registered office is located at Business Tower, Main Business Village 114499 Dubai, UAE.

Tradequomarkets LTD (2023/C0024). Located at #8 Jepson Lane, St. George, Goodwill, Commonwealth of Dominica

Trade Quo Global Ltd, a securities dealer firm that is authorized and regulated by the Seychelles Financial Services Authority (FSA) with license number SD140.

Tradequo (PTY) Ltd is licensed in South Africa by the Financial Sector Conduct Authority with FSP license number 54827. The registered office: 33rd Floor – 34 Whiteley Road, 2196, Johannesburg, South Africa.

Quo Markets LLC, registered with Financial Services Authority FSA: 3171 LLC 2024. Registered address: Suite 305, Griffith Corporate Centre, Beachmont, Kingstown, SVG.

Tqbg Ltd, registered in Cyprus with registration number HE438084, registered address Archiespiskopou Makariou III 160 1st floor, 3026, Limassol, Cyprus. Is apointed payment agent, and does not engage in any regulated activities.

Risk Warning: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 72.6% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

Regional Restrictions: This website including the information and materials contained in it, is not directed at, or intended for distribution to or use by, any person or entity who is a citizen or resident of the following countries: USA, Israel, Iran, Iraq, Russia, Afghanistan, Cuba, Cyprus, Eritrea, Liberia, Libya, Somalia and Syria or any jurisdiction where such distribution, publication, availability or use would be contrary to applicable law or regulation.

TradeQuo and its affiliates do not target EU/EEA/UK clients.

Aimé des gens

Reconnu par le marché

Prix 2025
Prix 2025
Prix 2025

© 2026 Trade Quo. All rights reserved.

This website provides content by group of companies, which include:

Tradequomarkets Financial Services L.L.C is a registered, authorised and regulated company by the Securities and Commodities Authority (SCA) of the United Arab Emirates, with License No. 20200000320 Category 5, to carry out regulated activities of Financial Consultations and Introduction. Its registered office is located at Business Tower, Main Business Village 114499 Dubai, UAE.

Tradequomarkets LTD (2023/C0024). Located at #8 Jepson Lane, St. George, Goodwill, Commonwealth of Dominica

Trade Quo Global Ltd, a securities dealer firm that is authorized and regulated by the Seychelles Financial Services Authority (FSA) with license number SD140.

Tradequo (PTY) Ltd is licensed in South Africa by the Financial Sector Conduct Authority with FSP license number 54827. The registered office: 33rd Floor – 34 Whiteley Road, 2196, Johannesburg, South Africa.

Quo Markets LLC, registered with Financial Services Authority FSA: 3171 LLC 2024. Registered address: Suite 305, Griffith Corporate Centre, Beachmont, Kingstown, SVG.

Tqbg Ltd, registered in Cyprus with registration number HE438084, registered address Archiespiskopou Makariou III 160 1st floor, 3026, Limassol, Cyprus. Is apointed payment agent, and does not engage in any regulated activities.

Risk Warning: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 72.6% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

Regional Restrictions: This website including the information and materials contained in it, is not directed at, or intended for distribution to or use by, any person or entity who is a citizen or resident of the following countries: USA, Israel, Iran, Iraq, Russia, Afghanistan, Cuba, Cyprus, Eritrea, Liberia, Libya, Somalia and Syria or any jurisdiction where such distribution, publication, availability or use would be contrary to applicable law or regulation.

TradeQuo and its affiliates do not target EU/EEA/UK clients.