Questions tagged [privacy]
Questions regarding the information that is leaked through cryptocurrency transactions or related processes, when subject to analysis and attempts of identification of sources and other properties.
408
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When you make a Bitcoin transaction, can the receiving person (and the world?) really see how much coins you have in the entire wallet?
I really hope that I've got this horribly wrong, but I have to ask...
I have this idea, which I base on comments and explanations I've heard over the years, that when you make a Bitcoin transaction, ...
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1
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Can someone recognize any two addresses (generated by hardware wallet) come from the same hardware wallet/mnemonic seed?
Can someone recognize any two addresses (generated by hardware wallet) come from the same hardware wallet/mnemonic seed?If I generate multiple cryptocurrency accounts/addresses in ledger live,is it ...
user117743
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What is it that frees Bisq from all these KYC/AML laws and regulations?
I feel as if I should probably not ask about this, and instead just quietly go on using it in my little corner, not bringing any attention to its existence, but I still must ask:
What is it that ...
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Why do people claim that governments cannot confiscate Bitcoins?
Let's say that I practice impeccable data security processes using dedicated devices, encryption, and no clear-text backups. Even if they cannot find all of my backups, this doesn't protect me from ...
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Can lightning transaction participants link the transaction to on-chain funding transaction UTXOs?
I'm curious about whether participants in a lightning transaction gain information about the funding UTXOs of other participants.
Let's say Alice pays Bob using Lightning, and Alice's payment is ...
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1
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392
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bitcoin-core automatic coin selection
for business reason i need to use the bitcoin-core (v0.20.1) automatic coin selection feature and few days ago i saw a transaction come out that left me puzzled, it was like that:
input
0.00017[...]...
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3
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Coinjoin implementations
What are the different coinjoin implementations being used right now?
What are the trade-offs involved in using one of them?
user103136
3
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2
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Why do people apparently "look up Bitcoin addresses on websites"?
I often hear things such as:
Remember, if you look up an address on Blockchain.info or something, they will have a record of your IP address being interested in that address and thus associate it ...
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Does the concept of a blockchain introduce a violation of privacy?
Per my understanding, in a blockchain system, all transactions are recorded on an immutable ledger.
Given this, if you know your friend's public address, wouldn't it be possible to figure out the ...
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How can I get the transaction history of a bitcoin address?
Lets say that I have a bitcoin address that is not owned by me. Is it possible to get that address's full transaction history (send/receive addresses and amount), and if the owner bought bit coins ...
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Bitcoins Anonymity - Do Exchanges Break It?
If I used to pay for bitcoin for something illegal (as defined by my country), and the public key of the wallet I used to spend the bitcoin became known, could authorities subpoena bitcoin exchanges ...
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Why is it recommended to "not send round number amounts when making payments" for increased privacy?
I got this advice today to increase my Bitcoin privacy:
Do not send round number amounts when making payments (eg send 0.00104103 BTC, instead of 0.001 BTC)
Why do they say this? Why does the amount ...
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1
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Privacy and Anonymity in Bitcoin
I hope this is not a duplicate.
I have seen lot of people confused between terms "PRIVACY" and "ANONYMITY". Context is Bitcoin transactions and protocol. What does privacy and ...
user103136
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answer
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Why is it impossible to get a straight answer as to whether Bitcoin is anonymous or not?
Yesterday, I asked a question which got linked to this answer: Is it true that all the bitcoins in existence are on the blockchain (the ledge), but it just depends on who the owner (address) is?
...
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What would stop some major company from blacklisting specific Bitcoins based on the "inputs" used and their "origins"?
I remember news about some exchange actually banning users based on some kind of "reputation score" on the inputs/coin parts they controlled/used, or got Bitcoin sent to them from. So even ...
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Are "coin mixers" actually a real thing? Can they be trusted?
Ever since I started hearing about Bitcoin, people have been mentioning "coin mixers" to me, and told me to use them. However, even early on, when they were practically throwing away ...
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Are there any privacy benefits in using a separate wallet in Bitcoin Core to separate myself from my service?
I currently run Bitcoin Core with the following wallets loaded in:
hot.dat. Contains the smallest possible sum of Bitcoin. Unencrypted and used by myself for various personal Bitcoin purchases, and I ...
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3
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Why isn't Bitcoin private by default? [duplicate]
Bitcoin is not fungible...so why haven't the Bitcoin core devs upgraded the protocol to make it private by default?
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How to cash out a Bitcoin wallet into fiat anonymously? [closed]
If bitcoin is converted to fiat money on an exchange, the exchange has irrefutable knowledge of your identity because they require the account name and bank account name to match.
The only way to ...
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Customer pays in EUR and I receive bitcoin anonymously [closed]
I run a small business, and up to now I have always demanded to be paid in cash for my services.
I want to allow my customers to pay electronically through wire transfer, while remaining anonymous ...
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Is there something about Bitcoin that prevents us from implementing the same privacy protocols of Monero and Zcash?
Certain coins like Monero and Zcash implement privacy protocols that make it nearly impossible to trace origin and destination of transactions - making them completely anonymous.
I'm curious as to why ...
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Can somebody explain this privacy concern with Bitcoin once and for all?
I have a wallet.dat in Bitcoin Core. I generate a new receive address. I give it to some random person who knows my identity. They send me 1 satoshi to that address. How exactly can they then "...
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Is it possible to "send" Bitcoin to yourself (new wallet) without announcing it to the network and without paying any fee?
I want to make clear that I've already performed said transactions, so I'm not asking this because I want to do it right now. I'm just curious.
Basically, I've spent a number of very sweaty and ...
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Should I be using the "encrypt wallet" feature in Bitcoin Core?
All my wallet.dats have no password. However, the internal hard disk where the "live" one is located is encrypted, and so are the offline storage devices where I have my "cold" ...
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2
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Am I really understanding how the "Trezor Model T", and hardware wallets in general, work?
Getting increasingly paranoid about losing my coins, I've yet again (for probably the 20th time by now) went looking for hardware wallets. The only semi-reasonable one seems to be the two Trezors. All ...
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How would I prove that I own X amount of Bitcoin to somebody without violating my privacy or sending/risking any coins?
Now that people who own a full Bitcoin will be like people who currently own ten million USD or more in "liquid assets", I'm trying to come up with some way that I can safely and reasonably ...
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is wallet vulnerable when unlocked for transactions?
is wallet vulnerable when unlocked for transactions?.I recovered a wallet some time ago and all is good.passphrase key all looks good.But a question came to my mind about the moment we make a ...
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Is the Cloudflare proposed ODOH protocol a thing that could improve Bitcoin node privacy?
Recently Cloudflare proposed an improvement to the DNS over HTTPS protocol called ODOH (Oblivious DNS over HTTPS). It allows separating a DNS server into two parts: the resolver and the proxy that ...
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How do I send bitcoin to multiple recipients at once?
How do I send bitcoin to multiple recipients at once? Like this. Also, I would like to know if the reason I see people do this is for privacy reasons? As when I sell items online they usually send the ...
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How is it possible, that nobody can track anyone on the bitcoin network?
Is it possible that a person on the bitcoin network cannot be tracked?
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Can somebody really tell how many BTC I have from a receive address? [duplicate]
I bought a small number of BTC in 2013.
Although it's not true, let's say for simplicity that I never moved them from my wallet.dat where I first received them.
Now, in 2020, I generate a new receive ...
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0
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Can you think of a safe way to safely keep my "spendable" Bitcoin in my situation?
I have my "cold stash" wallet.dat on multiple fully offline, encrypted hard disks/sticks inside a fireproof safe. I never seriously considered printing them onto paper because that would be ...
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0
answers
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What settings required to privately run bitcoin core on tails?
I am running bitcoin-core on TailsOS which seems to work out of the box. I think TailsOS blocks all unsafe requests but I would like to know what settings I should enable to run it really privately. ...
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1
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144
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Re-use change address as a receive address
Technically speaking, is it possible to reuse a change address from a previous transaction and make it a receive address?
What are the pros and cons of doing so? This does look like a bad privacy ...
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Where can I find research on wallet fingerprinting?
@raw_avocado asks on Twitter:
I remember reading at some point something about how you can identify
transactions made by specific wallets because they have a specific
fingerprint because of how they ...
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is my xPub published when I make a payment? (wallet privacy)
I'm generating new addresses for every payment I receive, but what happen when I transfer the bitcoins from my wallet to another address?
is my xPub exposed when doing that (maybe to the bitcoin node?)...
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Dandelion++ for Bitcoin
Dandelion BIP: https://github.com/bitcoin/bips/blob/master/bip-0156.mediawiki
The article that I read about Dandelion++: https://www.monerooutreach.org/stories/dandelion.html
It mentioned that ...
user103136
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in bitcoin core, how to use Tor for broadcasting new transactions only?
I have set up a full node with bitcoin core running on the internet. I have also set up a wallet running on a private machine that communicates to the full node to broadcast new transactions.
To ...
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List of different unknown mining pools
A miner can identify himself when he receive his coinbase transaction, we can view them on website offering block explorer like https://www.blockchain.com/charts/pools
Some of these miners are listed ...
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Securely erase a previously used address from bitcoin-core
I'd like to completely delete an address from bitcoin-core, in such a way that someone who obtains all the data on my computer could not find out I ever used that address.
Is it enough to delete ...
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1
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What are "tagged" Bitcoins?
I was reading about the Sheep Marketplace:
Victims of the theft have attempted to identify the thief by sending "tagged" bitcoins to his accounts, using the public nature of bitcoin ...
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2
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Is bitcoin really anonymous?
Let’s suppose i buy some bitcoin on an exchange platform (kraken for example).
This platform Ask me some informations (id card).
Now, if i transfer all my bitcoins to a physical wallet, then to ...
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Chat online using Bitcoin addresses?
I was surfing on the web and trying to find a chat app that uses Bitcoin address instead of phone numbers or any other identifier. Do you know about any project in this field?
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How do SPV clients acquire transactions from other nodes and verify that they are part of the blockchain?
I explored SPV clients as a subject from a lot of different resources, but there are a few of things that are keeping me confused:
I found out that SPV clients have no mempool even though SPV clients ...
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How does a game like Satoshi Dice avoid de-anonymizing users?
When considering games like satoshi dice or many other more typical online casino games, how do they handle awarding prizes? It seems like they pay back to the original input that sourced capital to ...
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How would somebody compromise my identity if I generate new receive address in Bitcoin Core?
I open Bitcoin Core and generate a new receive address.
I publish this without mentioning my name, and make every effort to conceal my identity in every other way.
Some time passes (possibly months or ...
2
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2
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How Crypto Payment Processors Handle Wallet Balance Privacy?
If an online store accepts crypto payments directly into its wallet there is a problem:
"Anyone can make a small transfer to any BTC address derived from the MPK so they can watch the store's and its ...
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What information can an attacker gain from watching the users behavior in block chain?
Given the blockchain is a public ledger, if user chooses not not change their public key (address) every time they make a transaction, what information can an attacker gain from watching the users ...
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Is there any tool to visualize the bitcoin transaction graphs?
I want to visualize the bitcoin transaction graph linked to addresses that could potentially link my addresses and to better chose which coins I would use for which payment to prevent loosing privacy. ...
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PayJoin privacy only works with specific output sizes?
In the specific example of PayJoin here: https://en.bitcoin.it/wiki/PayJoin the wiki equates a PayJoin transaction as indistinguishable from a regular transaction.
However the transaction example ...
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