--- # This file is licensed under the MIT License (MIT) available on # http://opensource.org/licenses/MIT. required: #-------------40 characters-------------# title_max_40_characters_no_formatting: 51% Attack, Majority Hash Rate Attack summary_max_255_characters_no_formatting: > The ability of someone controlling a majority of network hash rate to revise transaction history and prevent new transactions from confirming. synonyms_shown_in_glossary_capitalize_first_letter: - 51 percent attack - Majority attack optional: synonyms_and_pluralizations_not_shown_in_glossary: - 51 percent attacks - majority attacks - 51% attack - 51% attacks - majority hash rate attack - majority hash rate attacks not_to_be_confused_with_capitalize_first_letter: links_html_or_markdown_style_capitalize_first_letter: - "[51% attack](/en/developer-guide#term-51-attack) --- Developer Guide" - "[What can an attacker with 51% of hash power do?](http://bitcoin.stackexchange.com/q/658) --- Bitcoin StackExchange" - "[Bitcoin.pdf](/en/bitcoin-paper) --- Satoshi Nakamoto (Bitcoin.org)" ---