Monero’s XMR spiked 38% after a suspected hacker swapped $330M in stolen Bitcoin for the privacy-focused token, according to crypto investigator ZachXBT.  The unusual move triggered Monero’s biggest price jump in years, though it's now settled around $280.  Experts say the Bitcoin likely belonged to a long-term holder and was moved through hundreds of small transactions, suggesting a theft possibly involving social engineering.   Chainalysis noted most criminal crypto activity still uses mainstream coins like BTC, not privacy coins. Despite Monero’s anonymity, its low liquidity makes such large swaps inefficient, further fueling suspicions of money laundering.