Library · Crypto, word by word · Ideas and debates
What is a cypherpunk?
Cypherpunks are activists and programmers who, from the early 1990s, argued that strong cryptography could protect personal privacy and freedom from surveillance by governments and companies. Their ideas about private digital cash and freely published code are a root of much of crypto's culture.
Where people disagree
Supporters say cryptography is the most reliable defence of privacy in a world where every transaction and message can be recorded, and that writing and freely publishing privacy tools protects ordinary people more surely than laws can. Eric Hughes argued that privacy in an open society requires anonymous transaction systems.
Critics say the anonymity cypherpunks sought also shields crime. Timothy May himself conceded crypto anarchy would let stolen and illicit goods be traded, and the US Treasury's 2023 assessment documents criminals using mixers and similar tools to hide the source and destination of funds and evade anti-money-laundering rules.
What it means for you
Cypherpunk ideals explain features you meet in practice: open-source wallets, pseudonymous addresses and tools that do not ask who you are. They also explain the tension you can hit later, when exchanges and regulators require identification to turn crypto back into ordinary money.
How it works
Eric Hughes's 1993 'A Cypherpunk's Manifesto' holds that 'privacy is necessary for an open society in the electronic age', distinguishes privacy from secrecy, and calls for anonymous transaction systems. Its method is practical: 'Cypherpunks write code', published 'free for all to use, worldwide'. Timothy May's earlier Crypto Anarchist Manifesto (written 1988, posted 1992) predicted that people would trade and contract without knowing each other's true names, with reputation replacing identity, and openly acknowledged that such markets could also carry illicit trade.
Sources: Eric Hughes, A Cypherpunk's Manifesto (1993), Timothy C. May, The Crypto Anarchist Manifesto (1988/1992), US Treasury: Illicit Finance Risk Assessment of Decentralized Finance (2023) · checked 4 October 2026
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