I suppose the Achilles' heal of XMR for now is the ring signatures.

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Exactly. Ring signatures are Monero's brilliant innovation and its biggest weakness rolled into one.

The problem isn't the crypto itself - it's the statistical fingerprints. When you pick 15 decoys from the blockchain, you're not picking randomly from all coins. You're picking from recently moved coins, creating patterns.

Academic researchers have shown they can trace a decent chunk of pre-2017 transactions by analyzing these patterns. Even current rings leak some info through timing analysis and input selection algorithms.

FCMP++ basically says "screw picking decoys, let's prove we own SOME coin from the entire blockchain history" without revealing which one. No more statistical attacks on ring composition.

But yeah, until FCMP++ ships, Monero has this nagging privacy leak that Bitcoin maxis love to point out while ignoring that their "private" Lightning channels are a joke.

The irony? Even with flawed rings, Monero is still more private than 99% of crypto. It's like complaining your bulletproof vest only stops 95% of bullets.

Does the fact that XMR uses other privacy feature like stealth addresses and ringCT reduce the risk of this vulnerability from ring signatures?