{"id":271480,"date":"2026-06-12T15:00:00","date_gmt":"2026-06-12T19:00:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/06\/12\/bitcoin-core-developers-find-privacy-bug-that-can-leak-user-ip-addresses\/"},"modified":"2026-06-12T15:15:08","modified_gmt":"2026-06-12T19:15:08","slug":"bitcoin-core-developers-find-privacy-bug-that-can-leak-user-ip-addresses","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/06\/12\/bitcoin-core-developers-find-privacy-bug-that-can-leak-user-ip-addresses\/","title":{"rendered":"Bitcoin Core Developers Find Privacy Bug That Can Leak User IP Addresses"},"content":{"rendered":"

Bitcoin Core Developers Find Privacy Bug That Can Leak User IP Addresses<\/a><\/p>\n

https:\/\/tech.yahoo.com\/cybersecurity\/articles\/bitcoin-core-developers-privacy-bug-190000760.html<\/a><\/p>\n

Publish Date: 2026-06-12 15:00:00<\/a><\/p>\n

Source Domain: tech.yahoo.com<\/a><\/p>\n

Bitcoin Core developers have disclosed a privacy bug that can expose the very detail it was designed to hide, a user’s IP address. A fix will arrive in version 31.1.<\/strong><\/p>\n

The flaw sits in private broadcast, an optional feature added in version 31.0 this April. Developers published the warning on June 6.<\/p>\n

We have become aware of a privacy bug in the -privatebroadcast feature, newly introduced in Bitcoin Core 31.0, that may cause the originator’s IP address to be revealed to the receiving peer under certain network conditions. A fix is forthcoming and will be released with 31.1.<\/p>\n

\u2014 Bitcoin Core Project (@bitcoincoreorg) June 11, 2026<\/p>\n

How the Privacy Bug Backfires<\/strong><\/h2>\n

Private broadcast sends transactions through Tor, an anonymity network famous for accessing the dark web, so recipients never learn where they originated.\u00a0<\/p>\n

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However, the official advisory admits this promise can break.<\/p>\n

The trouble begins when the software attempts an encrypted connection to another computer on the network. If that attempt fails, it quietly retries over a normal connection and skips Tor entirely. The recipient then sees the sender’s real IP address, and with it their approximate location.<\/p>\n

Worse, attackers do not need luck. A hostile node can deliberately reject the encrypted handshake and force the revealing retry.<\/p>\n

The risk is critical because Bitcoin’s ledger is public. Linking a transaction to an IP address can tie payments to a real person.<\/p>\n

Who is Affected and What to Do<\/strong><\/h2>\n

The bug only touches people who run version 31.0 and switched the feature on. Everyday wallet transactions remain unaffected. Developers credit researcher Eugene Siegel with the discovery.<\/p>\n

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Meanwhile, markets barely flinched. Bitcoin (BTC) trades near $63,700, little changed over the past day. Developers now face the quieter job of repairing trust in Bitcoin privacy efforts.<\/p>\n

Until version 31.1 ships, affected users should disable the feature or route all their traffic through Tor. The…<\/p>\n

Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Bitcoin Core Developers Find Privacy Bug That Can Leak User IP Addresses https:\/\/tech.yahoo.com\/cybersecurity\/articles\/bitcoin-core-developers-privacy-bug-190000760.html Publish Date:…<\/p>\n","protected":false},"author":1,"featured_media":271482,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/s.yimg.com\/lo\/mysterio\/api\/9e632843413b8314d449c5df5815ca9de7cada420d77f5727e616b3a88b60471\/lightyear_networkapi\/resizefill_w1200;quality_80;format_webp\/https:%2F%2Fmedia.zenfs.com%2Fen%2Fbeincrypto_us_662%2F784554d226753216ebc5654d8ebe1d35","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-271480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-privacy"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/271480"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=271480"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/271480\/revisions"}],"predecessor-version":[{"id":271484,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/271480\/revisions\/271484"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/271482"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=271480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=271480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=271480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}