if I am using several Monero receiving accounts (like “cash”, “work”, “trading”, “mining”, “donations”) and for each of the account i have secondary account into which i repeatedly sweep my receiving account's balance in order to churn/mix my XMR (e.g. cash -> cash2nd).

What if:

A) I "combine" the XMR again in the second "level" of my XMR accounts (account called common3rd):

cash     -> cash2nd    -> common3rd
work     -> work2nd    -> common3rd
trading  -> trading2nd -> common3rd -> 3rd party (big payment which would combine most/all outputs)

B) I split each churning/mixing transaction into several a small outputs:

cash -> output 1 - cash2nd
     -> output 2 - work2nd
     -> output 3 - trading2nd
and then spend from all these 2nd accounts in one big transaction

Is better (anonymity-wise) A or B and why or you suggest better direction?

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[–] azalty@jlai.lu -1 points 3 months ago* (last edited 3 months ago) (1 children)

False and false

Using CEX and sending multiple transactions to the same person will make it really easy to trace you. You just need to have an opponent that is willing to do it and has what’s needed (your government for example)

[–] mister_monster@monero.town 2 points 3 months ago (1 children)

Using a CEX means telling them who you are. No way around that.

If you use subaddresses you don't have to worry about traceability after withdrawal.

[–] azalty@jlai.lu 1 points 3 months ago* (last edited 3 months ago)

You’ll have to explain me how 15 decoys are enough to make you untraceable, there is still roughly a 1 in 16 chance that a transaction your output is the real spend in a transaction where it is included.

Imagine you are A, and B and C are two different third parties

If B -> A -> C, then all good

But if B -> A -> B, then there is a 1 in 16 chance (in the best scenario for you) that in B's eyes, you were the real spend. Add to that the fact that most people don’t churn and B doesn’t have many customers, and it becomes a lot more likely that you were the real spend (I'd bet my money on it).

CEX or not, you’re still traceable