{"id":35054,"date":"2021-01-20T14:22:26","date_gmt":"2021-01-20T12:22:26","guid":{"rendered":"https:\/\/forklog.com\/en\/?p=35054"},"modified":"2025-08-28T23:30:21","modified_gmt":"2025-08-28T20:30:21","slug":"firo-network-hit-by-51-attack","status":"publish","type":"post","link":"https:\/\/u1f987.com\/en\/firo-network-hit-by-51-attack\/","title":{"rendered":"Firo network hit by 51% attack"},"content":{"rendered":"<p>The privacy-focused cryptocurrency Firo (formerly Zcoin) suffered a 51% attack. The developers urged users not to make transactions until the network returns to normal.<\/p>\n<p><!--more--><\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"en\">We are under 51% attack at the moment. We recommend not to make transactions during this time until the network returns to a normal state. We will post updates when we have them. Note this is not a coding error but a nature of PoW. <a href=\"https:\/\/twitter.com\/search?q=%24XZC&#038;src=ctag&#038;ref_src=twsrc%5Etfw\">$XZC<\/a> <a href=\"https:\/\/twitter.com\/search?q=%24FIRO&#038;src=ctag&#038;ref_src=twsrc%5Etfw\">$FIRO<\/a><\/p>\n<p>\u2014 Firo (formerly Zcoin) (@firoorg) <a href=\"https:\/\/twitter.com\/firoorg\/status\/1351703001849757697?ref_src=twsrc%5Etfw\">January 20, 2021<\/a><\/p>\n<\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<blockquote>\n<p>&#8220;This is not a coding error, but the nature of the Proof-of-Work consensus algorithm,&#8221; the developers noted.<\/p>\n<\/blockquote>\n<p>According to them, the incident occurred a few weeks before the rollout of Chainlocks. The mechanism prevents 51% attacks by using masternodes.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"1SZ9YC31Nx\">\n<p>What is a 51% attack?<\/p>\n<\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cWhat is a 51% attack?\u201d \u2014 ForkLog\" src=\"https:\/\/u1f987.com\/cryptorium\/chto-takoe-ataka-51\/embed#?secret=GwYerW4swR#?secret=1SZ9YC31Nx\" data-secret=\"1SZ9YC31Nx\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>The team planned to integrate a new transaction-processing method immediately after <a href=\"https:\/\/u1f987.com\/en\/news\/firo-developers-announce-activation-of-lelantus-privacy-protocol\">activation of the protocol<\/a> Lelantus privacy and the completion of the network rebranding.<\/p>\n<p>Back in November 2020, the privacy-focused Grin <a href=\"https:\/\/u1f987.com\/en\/news\/grin-network-hit-by-51-attack\">endured a 51% attack<\/a>.<\/p>\n<p>In the same month, a group of anonymous miners <a href=\"https:\/\/u1f987.com\/en\/news\/anonymous-group-of-miners-carried-out-a-51-attack-on-bitcoin-cash-abc\">took control of the majority<\/a> of the Bitcoin Cash ABC hash rate.<\/p>\n<p>Subscribe to ForkLog&#8217;s channel on <a href=\"https:\/\/www.youtube.com\/channel\/UCC9FnXTC8_ENzaNSO5cHQ6g\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"> YouTube<\/a>!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Firo, the privacy-focused cryptocurrency (formerly Zcoin), was subjected to a 51% attack. Developers urged users not to make transactions until the network returned to normal.<\/p>\n","protected":false},"author":1,"featured_media":35055,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"select":"1","news_style_id":"1","cryptorium_level":"","_short_excerpt_text":"","creation_source":"","_metatest_mainpost_news_update":false,"footnotes":""},"categories":[3],"tags":[1395,1256,2037],"class_list":["post-35054","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-and-analysis","tag-51-percent-attack","tag-privacy-and-personal-data","tag-zcoin"],"aioseo_notices":[],"amp_enabled":true,"views":"23","promo_type":"1","layout_type":"1","short_excerpt":"","is_update":"","_links":{"self":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts\/35054","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/comments?post=35054"}],"version-history":[{"count":1,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts\/35054\/revisions"}],"predecessor-version":[{"id":35056,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts\/35054\/revisions\/35056"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/media\/35055"}],"wp:attachment":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/media?parent=35054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/categories?post=35054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/tags?post=35054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}