Is there something in Monero transactions that can tie them together in this scenario:
- send some non-private crypto to an instant exchange
- exchange it for monero
- withdraw the monero
- after some time send some monero to that same instant exchange to exchange it for some non-private crypto
Would the instant exchange have a way to determine if the two transactions are connected to the same wallet (amounts being different)? What time difference between the 2 transactions would be sufficient?
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Some of your questions may be answered in the topics:
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I need to do how many Monero transactions between my wallets before i break the trace?
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Sweep/churn my Monero balance more or less often to improve anonymity?
Maybe you should edit your post and explain in greater detail what is “instant exchange”, how you would use it, which data you would provide to them.
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Here is some more information:
An instant exchange is a CEX where you don’t register such as Changenow.
Everything is done through TOR browser. No data is provided except for the non-private crypto wallets. Wallet in use is monero-core.
The idea is to disconnect non-private crypto wallets from each other (eth, sol, btc).
Threat model is plausible deniability. Nobody is currently monitoring me, but just in case in the future someone gets interested in me… It’s not a problem if it becomes visible in 10 years.
My understanding is that the exchange would not have a way of knowing that the xmr it receives from a monero-core wallet consists of the xmr it previously sent to that wallet. Any connection that could be made would be circumstantial at best. Is that correct?
I wouldn’t say no but the chances are very slim of exchanges linking transactions back with different amounts and timing. As far as time difference it depends on the size. Exchanges don’t care about small transactions. I personally would’t use the same exchange twice and avoid linking funds to any KYC accounts if possible.
And be careful using these instant swappers some have asked for KYC from users just because they are buying or selling XMR. Use Clockswap.io my go-to since tradeogre/eXch got seized. They don’t use API of CEXs and got their own pools.