banjo45673 An adversary with enough resources can trace it back to the stablecoin that was used to purchase monero and therefore can trace how one obtained the stablecoin to begin with.
I'll go a little bit off-topic.
Let's start saying that stablecoins are not the only option to obtain monero.
After you buy monero you just need another jump (monero to monero) to conceal your traces.
Two jumps for the paranoic, even if I would say it might be already an overkill.
Blocks are encrypted differently for every transaction between peers, reason why you are not able to obtain a wallet balance (info you can obtain easily in other cryptovalues) looking at the blockchain.
I am not aware of any advance chain analysis that could give up your identity which does not involve asking the exchange for info about you.
Please, if you can find back the source where you got these information would be a very nice read.
banjo45673 So tails is similar to a VPN?
Tails is a whole OS (based on Debian), which is meant to be used through TOR only (with some exceptions, like getting the time from the Fedora Servers).
The topic is huge really, and TOR and VPNs work very differently one from the other.
If we have to try to be very short and not technical:
VPNs (at least commercial ones) are usually meant to be used system wide and requires less effort for the user to force a program to go through it.
TOR tries to conceal your identity the best it can, and you usually use it as a proxy and as such you might have leaks
Tails tries the best it can to enforce TOR system wide (and so preventing leaks), and that's why @secrec said that the way Tails uses TOR resemble an "anonymity VPN".
That said, depending on your threat model you can have differences.
For the average Joe, as both of them:
- Hide to your ISP where are you going
- Can hide your DNS requests (if set properly)
- Can use quantum encryption
Consider also that with both of them, your ISP and target are aware if you are using TOR/VPNs and might behave differently accordingly.
With TOR you trust nodes on the network not being rogue.
With VPN you trust your provider not being rouge.
Tails is also looking into shipping a VPN browser (source).