{"id":81529,"date":"2022-06-21T15:29:00","date_gmt":"2022-06-21T15:29:00","guid":{"rendered":"https:\/\/fr.cryptonews.com\/?p=81529"},"modified":"2023-06-26T11:06:49","modified_gmt":"2023-06-26T11:06:49","slug":"pourquoi-ouvrir-un-portefeuille-bitcoin-btc","status":"publish","type":"post","link":"https:\/\/cryptonews.com\/fr\/exclusives\/pourquoi-ouvrir-un-portefeuille-bitcoin-btc\/","title":{"rendered":"Pourquoi ouvrir un portefeuille Bitcoin (BTC) ?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">On ne le r&eacute;p&eacute;tera jamais assez souvent: il est essentiel de bien prot&eacute;ger ses avoirs en Bitcoin (BTC). <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/cryptonews.com\/fr\/exclusives\/les-exchanges-n-y-laissez-pas-vos-cryptos-2700\/\">Laisser ses BTC sur un &eacute;change crypto est une tr&egrave;s mauvaise id&eacute;e<\/a>. Comme on dit, <i>\u00ab\u00a0not your keys, not your coins\u00a0\u00bb<\/i>, ce qui peut se traduire librement par \u00ab\u00a0si vous ne poss&eacute;dez pas vos cl&eacute;s priv&eacute;es, vous ne poss&eacute;dez pas vos bitcoins\u00a0\u00bb. Et pour prot&eacute;ger vos BTC, pas d&rsquo;autre choix que d&rsquo;<strong>utiliser un portefeuille Bitcoin<\/strong>.<\/p><figure class=\"image\"><img decoding=\"async\" src=\"https:\/\/cimg.co\/news\/81529\/207420\/adobestock-481236243-editorial-use-only.jpeg\" alt=\"\" srcset=\"https:\/\/cimg.co\/news\/81529\/207420\/responsive-images\/adobestock-481236243-editorial-use-only___media_library_original_800_533.jpeg 800w, https:\/\/cimg.co\/news\/81529\/207420\/responsive-images\/adobestock-481236243-editorial-use-only___media_library_original_720_479.jpeg 720w, https:\/\/cimg.co\/news\/81529\/207420\/responsive-images\/adobestock-481236243-editorial-use-only___media_library_original_600_399.jpeg 600w, https:\/\/cimg.co\/news\/81529\/207420\/responsive-images\/adobestock-481236243-editorial-use-only___media_library_original_300_199.jpeg 300w\" sizes=\"100vw\" width=\"800\" class=\"content-img\"><figcaption>Le portefeuille Nano de <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/shop.ledger.com\/?r=12b53b98a1c0&amp;tracker=CN-FR\">Ledger<\/a> est une solution s&eacute;curitaire pour conserver ses avoirs en Bitcoin \/ Photo: Adobe Stock<\/figcaption><\/figure><h2>Qu&rsquo;est-ce qu&rsquo;un portefeuille Bitcoin ?<\/h2><span class=\"replacer\"><\/span><p>Un portefeuille Bitcoin est une <strong>solution de stockage<\/strong> et d&rsquo;&eacute;change de BTC, leader en termes de capitalisation boursi&egrave;re, mais &eacute;galement de diff&eacute;rentes cryptomonnaies. Il existe deux types de portefeuilles, d&rsquo;une part ce que l&rsquo;on appelle les &laquo; <i><strong>hot wallets<\/strong><\/i> &raquo;, connect&eacute;s &agrave; internet, et d&rsquo;autre part les &laquo; <i><strong>cold wallets<\/strong><\/i> &raquo;, qui ne le sont pas.&nbsp;<\/p><figure class=\"image\"><img decoding=\"async\" src=\"https:\/\/cimg.co\/p\/no_image.svg\" alt=\"\" sizes=\"100vw\" width=\"1080\" class=\"content-img lazyload\" data-src=\"https:\/\/cimg.co\/news\/81529\/207418\/exodus-wallet-learnbonds-2-3.jpeg\" data-srcset=\"https:\/\/cimg.co\/news\/81529\/207418\/responsive-images\/exodus-wallet-learnbonds-2-3___media_library_original_1080_800.jpeg 1080w, https:\/\/cimg.co\/news\/81529\/207418\/responsive-images\/exodus-wallet-learnbonds-2-3___media_library_original_900_666.jpeg 900w, https:\/\/cimg.co\/news\/81529\/207418\/responsive-images\/exodus-wallet-learnbonds-2-3___media_library_original_720_533.jpeg 720w, https:\/\/cimg.co\/news\/81529\/207418\/responsive-images\/exodus-wallet-learnbonds-2-3___media_library_original_600_444.jpeg 600w, https:\/\/cimg.co\/news\/81529\/207418\/responsive-images\/exodus-wallet-learnbonds-2-3___media_library_original_300_222.jpeg 300w\"><figcaption>Un exemple de portefeuille est Exodus<\/figcaption><\/figure><p>Les <i>hot wallets<\/i> prennent la forme d&rsquo;applications mobiles, web ou de bureau (ou sont int&eacute;gr&eacute;s &agrave; votre compte sur une plateforme d&rsquo;&eacute;change) et sont exclusivement logiciels.&nbsp;<br><br>Il faut distinguer les hot wallets dont la garde est assur&eacute;e par l&rsquo;utilisateur et les portefeuilles dont la garde est confi&eacute;e &agrave; des tierces parties, comme le montre le sch&eacute;ma ci-dessous:<\/p><figure class=\"image\"><img decoding=\"async\" src=\"https:\/\/cimg.co\/p\/no_image.svg\" alt=\"\" sizes=\"100vw\" width=\"1288\" class=\"content-img lazyload\" data-src=\"https:\/\/cimg.co\/news\/81529\/207421\/hot-cold.jpg\" data-srcset=\"https:\/\/cimg.co\/news\/81529\/207421\/responsive-images\/hot-cold___media_library_original_1288_1106.jpg 1288w, https:\/\/cimg.co\/news\/81529\/207421\/responsive-images\/hot-cold___media_library_original_1200_1030.jpg 1200w, https:\/\/cimg.co\/news\/81529\/207421\/responsive-images\/hot-cold___media_library_original_900_772.jpg 900w, https:\/\/cimg.co\/news\/81529\/207421\/responsive-images\/hot-cold___media_library_original_720_618.jpg 720w, https:\/\/cimg.co\/news\/81529\/207421\/responsive-images\/hot-cold___media_library_original_600_515.jpg 600w, https:\/\/cimg.co\/news\/81529\/207421\/responsive-images\/hot-cold___media_library_original_300_257.jpg 300w\"><\/figure><p>Les portefeuilles de type <i>cold wallet<\/i> comme ceux de <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/shop.trezor.io\/?offer_id=82&amp;aff_id=1814\"><strong>Trezor<\/strong><\/a>, de <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/shop.ledger.com\/?r=12b53b98a1c0&amp;tracker=CN-FR\"><strong>Ledger<\/strong><\/a> (ou encore les portefeuilles papier) sont des portefeuilles qui ont la particularit&eacute; de ne pas assurer la garde des cryptomonnaies, c&rsquo;est en effet &agrave; l&rsquo;utilisateur d&rsquo;assurer la s&eacute;curit&eacute; de ses avoir en Bitcoin (ou en altcoins).&nbsp;<\/p><p>Ces diff&eacute;rents types de portefeuilles fonctionnent de la m&ecirc;me fa&ccedil;on. Ils stockent non pas vos avoirs directement mais les informations n&eacute;cessaires pour y acc&eacute;der.&nbsp;<\/p><p>Chaque adresse Bitcoin est, en effet, associ&eacute;e &agrave; un ensemble de num&eacute;ros secrets priv&eacute;s, ainsi qu&rsquo;&agrave; une cl&eacute; publique correspondant &agrave; l&rsquo;identification sur la blockchain de l&rsquo;utilisateur. Ces cl&eacute;s sont utilis&eacute;es pour signer des transactions, donnant ainsi &agrave; l&rsquo;utilisateur le contr&ocirc;le sur les bitcoins de cette adresse.<strong> <\/strong>Ce sont ces informations qui sont stock&eacute;es sur un portefeuille crypto.<\/p><figure class=\"image\"><img decoding=\"async\" src=\"https:\/\/cimg.co\/p\/no_image.svg\" alt=\"\" sizes=\"100vw\" width=\"800\" class=\"content-img lazyload\" data-src=\"https:\/\/cimg.co\/news\/81529\/207422\/c3d3c3d7-4ca5-476e-bbdd-85817b538f44-63d9f2347abac16c55b1e69a03fd2bc6.jpeg\" data-srcset=\"https:\/\/cimg.co\/news\/81529\/207422\/responsive-images\/c3d3c3d7-4ca5-476e-bbdd-85817b538f44-63d9f2347abac16c55b1e69a03fd2bc6___media_library_original_800_800.jpeg 800w, https:\/\/cimg.co\/news\/81529\/207422\/responsive-images\/c3d3c3d7-4ca5-476e-bbdd-85817b538f44-63d9f2347abac16c55b1e69a03fd2bc6___media_library_original_720_720.jpeg 720w, https:\/\/cimg.co\/news\/81529\/207422\/responsive-images\/c3d3c3d7-4ca5-476e-bbdd-85817b538f44-63d9f2347abac16c55b1e69a03fd2bc6___media_library_original_600_600.jpeg 600w, https:\/\/cimg.co\/news\/81529\/207422\/responsive-images\/c3d3c3d7-4ca5-476e-bbdd-85817b538f44-63d9f2347abac16c55b1e69a03fd2bc6___media_library_original_300_300.jpeg 300w\"><figcaption>Le portefeuille cod wallet de <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/shop.trezor.io\/?offer_id=82&amp;aff_id=1814\">Trezor<\/a><\/figcaption><\/figure><p>Certains portefeuilles proposent, par ailleurs, la possibilit&eacute; d&rsquo;exiger plus d&rsquo;une cl&eacute; pour autoriser une transaction. Cela peut &ecirc;tre utilis&eacute; pour s&eacute;parer la responsabilit&eacute; et le contr&ocirc;le de fonds entre plusieurs parties.<br><br>Le site Coin Tracker <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/www.cointracker.io\/blog\/crypto-wallets\">a utilis&eacute;<\/a> une analogie avec la finance traditionnelle tr&egrave;s bonne pour comprendre les diff&eacute;rences entre les cold et les hot wallets.&nbsp;<\/p><figure class=\"image\"><img decoding=\"async\" src=\"https:\/\/cimg.co\/p\/no_image.svg\" alt=\"\" sizes=\"100vw\" width=\"2014\" class=\"content-img lazyload\" data-src=\"https:\/\/cimg.co\/news\/81529\/207425\/capture-decran-le-2022-06-19-a-10-14-01.jpg\" data-srcset=\"https:\/\/cimg.co\/news\/81529\/207425\/responsive-images\/capture-decran-le-2022-06-19-a-10-14-01___media_library_original_2014_680.jpg 2014w, https:\/\/cimg.co\/news\/81529\/207425\/responsive-images\/capture-decran-le-2022-06-19-a-10-14-01___media_library_original_1200_405.jpg 1200w, https:\/\/cimg.co\/news\/81529\/207425\/responsive-images\/capture-decran-le-2022-06-19-a-10-14-01___media_library_original_900_303.jpg 900w, https:\/\/cimg.co\/news\/81529\/207425\/responsive-images\/capture-decran-le-2022-06-19-a-10-14-01___media_library_original_720_243.jpg 720w, https:\/\/cimg.co\/news\/81529\/207425\/responsive-images\/capture-decran-le-2022-06-19-a-10-14-01___media_library_original_600_202.jpg 600w, https:\/\/cimg.co\/news\/81529\/207425\/responsive-images\/capture-decran-le-2022-06-19-a-10-14-01___media_library_original_300_101.jpg 300w\"><\/figure><ul><li>Un hot wallet \u00ab\u00a0self custody\u00a0\u00bb est comme avoir de l&rsquo;argent liquide dans son portefeuille.<\/li><li>Un hot wallet \u00ab\u00a0third-party custody\u00a0\u00bb, c&rsquo;est comme si les fonds &eacute;tait dans un compte courant en banque.<\/li><li>Un cold wallet \u00ab\u00a0self custody\u00a0\u00bb est comme avoir du cash sous son matelas.<\/li><li>Un cold wallet \u00ab\u00a0third-party custody\u00a0\u00bb est comme avoir un coffre-fort en banque.<\/li><\/ul><h2>Caract&eacute;ristiques et avantages d&rsquo;un portefeuille Bitcoin<\/h2><span class=\"replacer\"><\/span><ul><li>Acc&egrave;s rapide &agrave; ses avoirs au moyen d&rsquo;un mot de passe (sans n&eacute;cessit&eacute; d&rsquo;employer syst&eacute;matiquement ses cl&eacute;s priv&eacute;es);<\/li><li>S&eacute;curit&eacute; de vos avoirs accrue (particuli&egrave;rement dans le cas des <i>cold wallets<\/i>);<\/li><li>Possibilit&eacute; de d&eacute;connexion automatique de session apr&egrave;s l&rsquo;ex&eacute;cution d&rsquo;une transaction pour emp&ecirc;cher tout acc&egrave;s non autoris&eacute;;<\/li><li>Acc&egrave;s plus ais&eacute; &agrave; l&rsquo;historique des transactions pour les utilisateurs;<\/li><li>Possibilit&eacute; de recevoir des notifications push en temps r&eacute;el pour afficher l&rsquo;activit&eacute; 24 heures sur 24;<\/li><li>Acc&egrave;s rapide &agrave; la liste des adresses de portefeuille fr&eacute;quemment utilis&eacute;es;<\/li><li>Plusieurs modes d&rsquo;ex&eacute;cution de transactions offerts (via NFC ou code QR notamment).<\/li><\/ul><h2>La s&eacute;curit&eacute; d&rsquo;un portefeuille Bitcoin<\/h2><span class=\"replacer\"><\/span><p>La s&eacute;curit&eacute; des portefeuilles est essentielle car les cryptomonnaies sont des cibles de grande valeur pour les pirates informatiques. Certaines garanties incluent le cryptage du portefeuille avec un mot de passe fort, l&rsquo;utilisation d&rsquo;une <strong>authentification &agrave; deux facteurs<\/strong> (2FA) pour les &eacute;changes ou encore le stockage hors ligne de vos informations.<\/p><figure class=\"image\"><img decoding=\"async\" src=\"https:\/\/cimg.co\/p\/no_image.svg\" alt=\"\" sizes=\"100vw\" width=\"1286\" class=\"content-img lazyload\" data-src=\"https:\/\/cimg.co\/news\/81529\/207423\/cold-wallet-ledger.jpg\" data-srcset=\"https:\/\/cimg.co\/news\/81529\/207423\/responsive-images\/cold-wallet-ledger___media_library_original_1286_864.jpg 1286w, https:\/\/cimg.co\/news\/81529\/207423\/responsive-images\/cold-wallet-ledger___media_library_original_1200_806.jpg 1200w, https:\/\/cimg.co\/news\/81529\/207423\/responsive-images\/cold-wallet-ledger___media_library_original_900_604.jpg 900w, https:\/\/cimg.co\/news\/81529\/207423\/responsive-images\/cold-wallet-ledger___media_library_original_720_483.jpg 720w, https:\/\/cimg.co\/news\/81529\/207423\/responsive-images\/cold-wallet-ledger___media_library_original_600_403.jpg 600w, https:\/\/cimg.co\/news\/81529\/207423\/responsive-images\/cold-wallet-ledger___media_library_original_300_201.jpg 300w\"><figcaption>Les portefeuilles de <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/shop.ledger.com\/?r=12b53b98a1c0&amp;tracker=CN-FR\">Ledger<\/a> ne conservent pas vos cryptomonnaies, mais vos cl&eacute;s priv&eacute;es<\/figcaption><\/figure><p>La plupart des portefeuilles modernes sont g&eacute;n&eacute;r&eacute;s &agrave; partir d&rsquo;un code unique de douze mots, qui peut &ecirc;tre utilis&eacute; pour restaurer ce dernier si l&rsquo;appareil est perdu ou endommag&eacute;. Ces mots doivent &ecirc;tre soigneusement stock&eacute;s dans un endroit s&ucirc;r, car quiconque les trouvera pourra voler votre cryptomonnaie.<\/p><p>Comme vous pouvez le constater, l&rsquo;utilisation de la cryptomonnaie n&rsquo;est pas aussi compliqu&eacute;e qu&rsquo;elle semble l&rsquo;&ecirc;tre de prime abord. La technologie blockchain et les cryptomonnaies sont d&eacute;sormais des symboles de libert&eacute; financi&egrave;re. D&eacute;tenir un portefeuille num&eacute;rique, permet de s&rsquo;extraire, en partie, de la d&eacute;pendance vis-&agrave;-vis des institutions bancaires et des inflexions des banques centrales et de reprendre le contr&ocirc;le sur la gestion de son patrimoine.<\/p><p>P.S. &Ecirc;tes-vous pr&ecirc;t(e) &agrave; entrer dans la cryptosph&egrave;re ?&nbsp; N&rsquo;h&eacute;sitez pas de d&eacute;couvrir <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/cryptonews.com\/fr\/guides\/\">nos guides<\/a> consacr&eacute;s &agrave; diff&eacute;rentes cryptomonnaies !<\/p><h3><strong>Suivez nos liens d&rsquo;affili&eacute;s:<\/strong><\/h3><ul><li><strong>Pour acheter des cryptomonnaies en Zone SEPA, Europe et citoyens fran&ccedil;ais<\/strong>, visitez <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/www.coinhouse.com\/r\/179207\">Coinhouse<\/a><\/li><li><strong>Pour acheter des cryptomonnaies au Canada<\/strong>, visitez <a target=\"_blank\" rel=\"noopener  sponsored nofollow\" href=\"https:\/\/rapi.cryptonews.com\/ext\/bitbuy\/fr\">Bitbuy<\/a><\/li><li><strong>Pour g&eacute;n&eacute;rer des int&eacute;r&ecirc;ts gr&acirc;ce &agrave; vos bitcoins<\/strong>, allez sur le site de <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/blockfi.mxuy67.net\/kqG6x\">BlockFi<\/a><\/li><li><strong>Pour s&eacute;curiser ou stocker vos cryptomonnaies<\/strong>, procurez-vous les portefeuilles <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/shop.ledger.com\/?r=12b53b98a1c0&amp;tracker=CN-FR\">Ledger<\/a> ou <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/shop.trezor.io\/?offer_id=82&amp;aff_id=1814\">Trezor<\/a><\/li><li><strong>Pour transiger vos cryptos de fa&ccedil;on anonyme<\/strong>, installez l&rsquo;application <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/go.nordvpn.net\/aff_c?offer_id=252&amp;aff_id=54152&amp;url_id=14818\">NordVPN<\/a><\/li><\/ul><p><strong>Pour investir dans le minage de cryptomonnaies ou les masternodes:<\/strong><\/p><ul><li><a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/feel-mining.com\/?tracking=1ED831AFAB\">Feel Mining<\/a><\/li><li><a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/www.just-mining.com\/register?sponsor=aNJ7nRa0m3qvgi6LkMXAZX506\">Just Mining<\/a><\/li><\/ul><p><strong>Pour accumuler des cryptos en jouant :<\/strong><\/p><ul><li>Au poker sur la plateforme de jeux <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/coinpoker.com\/crypto\">CoinPoker<\/a><\/li><li>&Agrave; un fantasy football mondial sur la plateforme <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/sorare.pxf.io\/c\/2102999\/902742\/12209\">Sorare<\/a><\/li><\/ul><p>Restez inform&eacute; gr&acirc;ce &agrave; <a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/www.getrevue.co\/profile\/CryptonewsFR\"><strong>notre newsletter hebdomadaire gratuite<\/strong><\/a><strong> <\/strong>et &agrave; nos r&eacute;seaux sociaux:<\/p><ul><li><a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/twitter.com\/cryptonews_FR\"><strong>Twitter<\/strong><\/a><strong>&nbsp;<\/strong><\/li><li><a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/t.me\/cryptonews_FR\"><strong>Telegram<\/strong><\/a><\/li><li><a target=\"_blank\" rel=\"noopener \" href=\"https:\/\/www.linkedin.com\/company\/11745115\"><strong>LinkedIn<\/strong><\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>On ne le r&eacute;p&eacute;tera jamais assez souvent: il est essentiel de bien prot&eacute;ger ses avoirs en Bitcoin (BTC). Laisser ses BTC sur un &eacute;change crypto est une tr&egrave;s mauvaise id&eacute;e. Comme on dit, \u00ab\u00a0not your keys, not your coins\u00a0\u00bb, ce qui peut se traduire librement par \u00ab\u00a0si vous ne poss&eacute;dez pas vos cl&eacute;s priv&eacute;es, vous [&hellip;]<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,2],"tags":[44,45],"editors":[1917],"sponsored_companies":[],"class_list":["post-81529","post","type-post","status-publish","format-standard","hentry","category-features","category-exclusives","tag-bitcoin","tag-btc","editors-cryptocath"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pourquoi ouvrir un portefeuille Bitcoin (BTC) ?<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez comment fonctionne les portefeuilles Bitcoin\" \/>\n<meta name=\"robots\" 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