Jameson Lopp

{{short description|American software developer and Bitcoin advocate}}

{{Use American English|date=September 2021}}

{{Use mdy dates|date=September 2021}}

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| citizenship = United States

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| fields = Computer science, operations security

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| known_for = Bitcoin, software, privacy

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| website = {{URL|https://lopp.net/}}

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Jameson Lopp is an American cypherpunk, software engineer, columnist, and Bitcoin advocate. Lopp is co-founder and CTO of bitcoin security provider Casa.{{cite web |last1=Kauflin |first1=Jeff |title=Bitcoin Thieves Beware: Super Secure Wallet Maker Casa Raises $2 Million |url=https://www.forbes.com/sites/jeffkauflin/2018/03/02/bitcoin-thieves-beware-super-secure-wallet-maker-casa-raises-2-million/?sh=2c6cf4b74423 |work=Forbes |access-date=29 October 2021}} Prior to joining Casa, Lopp served as software engineer at BitGo.{{cite report |author1=Tapscott, Alex |author2=Tapscott, Don |date=2017-06-28 |title=Realizing the Potential of Blockchain|url=https://www.weforum.org/whitepapers/realizing-the-potential-of-blockchain|publisher=World Economic Forum|page=12|access-date=2021-09-29}}

Lopp has been publicly involved in cryptocurrency dating back to 2012 and involved with Casa since 2018.{{Cite web|url=https://twitter.com/lopp/status/273882923030175744|title=Twitter|website=Twitter|language=en-US|access-date=2021-10-02}}{{primary source inline|date=October 2021}}

Lopp was the subject of a swatting attack in October 2017.{{Cite web|url=https://techcrunch.com/2017/10/17/bitcoin-engineer-jameson-lopp-swatted-by-angry-crypto-fans/|title=Bitcoin engineer Jameson Lopp SWATted by angry crypto fans|website=TechCrunch|date=October 17, 2017 |language=en-US|access-date=2019-03-12}} As a result of the attack, Lopp made the decision to live off-the-grid, which has been written about in The New York Times. In the effort, Lopp purchased a decoy house, created a number of business entities, and paid private investigators to try and locate him. Lopp's whereabouts remain unknown.{{Cite news|url=https://www.nytimes.com/2019/03/12/technology/how-to-disappear-surveillance-state.html|title=How a Bitcoin Evangelist Made Himself Vanish, in 15 (Not So Easy) Steps|last=Popper|first=Nathaniel|date=2019-03-12|work=The New York Times|access-date=2019-03-12|language=en-US|issn=0362-4331}}