Can anonymous Bitcoin purchases be traced by authorities?

Yes, anonymous Bitcoin purchases can often be traced by authorities. While Bitcoin transactions use pseudonymous addresses rather than names, the blockchain is publicly visible, allowing investigators to track transaction flows. When you buy Bitcoin on regulated exchanges, you typically provide identification (KYC - Know Your Customer), creating a clear link between your identity and wallet. Even peer-to-peer purchases can be traced through IP addresses, payment methods, or follow-up transactions. Law enforcement agencies have become increasingly sophisticated at de-anonymizing Bitcoin, using blockchain analysis tools and bank records. Mixing services and privacy coins offer more anonymity but may face legal restrictions. The consensus among regulators is that Bitcoin's transparency, combined with exchange regulations, makes truly untraceable transactions difficult to achieve.