What are the implications of address re-use? Which wallets have the best privacy features?

Check out the Open Bitcoin Privacy Project here: http://www.openbitcoinprivacyproject.org/

These questions are from the MOOC 9.3 and 9.4 sessions which took place on March 2nd and March 9th, 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles.

If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop

RELATED:
Worse Than Useless: Financial Surveillance – https://youtu.be/n4F-h4xuXMk
Fungibility, privacy, anonymity – https://youtu.be/y3s8c7YDtXU
Altcoins and specialisation – https://youtu.be/b_Yhr8h6xnA
The price of losing privacy – https://youtu.be/2G8IgiLbT_4
The war on cash and crypto – https://youtu.be/BAlRKfvBnvw
MimbleWimble and Schnorr signatures – https://youtu.be/qloq75ekxv0
Mixing services – https://youtu.be/rKoMvOH4zoY
Atomic swaps – https://youtu.be/fNFBA2UmUmg
Decentralised exchanges with fiat – https://youtu.be/3Url8tbQEkA
Decentralised exchanges and counterparty risk – https://youtu.be/hi_jaw0dT9M
The Lightning Network – https://www.youtube.com/playlist?list=PLPQwGV1aLnTurL4wU_y3jOhBi9rrpsYyi
How do I choose a wallet? – https://youtu.be/tN6b62sEpsY
Hot vs. cold wallets – https://youtu.be/Aji_E9sw0AE
Secure, tiered storage system – https://youtu.be/uYIVuZgN95M
Using paper wallets – https://youtu.be/cKehFazo8Pw
How do I secure my bitcoin? – https://youtu.be/vt-zXEsJ61U
HODLing and the “get free” scheme – https://youtu.be/MhOwmsW1YNI
Wealth distribution statistics – https://youtu.be/X2Qsz4eaSPY
How to get people to care about security – https://youtu.be/Ji1lS9NMz1E
Airdrop coins and privacy implications – https://youtu.be/JHRnqJJ0rhc
Bitcoin as everyday currency – https://youtu.be/xYvvSV4mjH0

Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.

Follow on Twitter: @aantonop https://twitter.com/aantonop
Website: https://antonopoulos.com/

He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.

THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8

[NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8

MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042

[NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388

Subscribe to the channel to learn more about Bitcoin & open blockchains!

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Outro Graphics: Phneep (http://www.phneep.com/)
Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)

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28 COMMENTS

  4. Does anyone know what it takes, if it is possible yet, to track funds through multiple exchanges? For instance, you buy BTC in coinbase (ID given) then send BTC to a non-verified exchange, buy a random alt coin (ERC20 for example), move that to a another unverified exchange and buy BTC back. This would be incredibly difficult to track, no?

  8. thanks for the video Andreas, but I've always asked myself if there are enough btc addresses for that process. If I have to use a single addresses each time I'm doing a transaction, we are speaking of thousands of addresses every year for billions of users for hundreds of years.

  9. Word of Advise: DONT USE JAXX WALLET. It is incredibly buggy and broken. I lost about 1 BTC because the stupid wallet overwrite the private key of the existing address with a new private key for some other address which it generated.

  12. I purchase some BTC every month. Since I dollar cost average, I get amounts like .1111 at a time. If I wish to make a purchase with 2 BTC, and I have N fragments with .1111 and .10075 and .09666, how do I get them into one place to make the transaction?

    So far, I've put everything in a single address, figuring I can feed a small amount from there into an address controlled by a phone app — pocket money — but that too, is traceable. To do it right, I'd have to buy a privacy coin, then buy back BTC and use THAT for my pocket money, but that's not easy either.

    Any suggestions?

  19. @aantonop Sir tell us does zcash shielded trasaction from one zcash shielded address to another shielded address and the view key of the first address is publish to the public then what about the second shielded address……can any one monitor both the address all the time……?

  20. Electrum is a solid wallet imo as it spits up a new address everytime by default whereas the likes Of Exodus is more consumer orientated and you have the same receive address all the time and can't change this,so I only use it for everything non BTC or ETH

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