The XRP ledger is a public blockchain, with no governing party that can freeze or retrieve funds, close accounts, or otherwise keep people from their assets.
Our tools can't do that either, but we can flag accounts used for illicit activity, which will:
Report it to the local police and if your country has an online report form for cybercrime or financial crime, report it there as well.
We maintain the largest advisory list database on the XRPL and is used by several entities to combat illicit activity. Submit the bad account here.
We work with law enforcement. Let them know that we have the information – the odds are that we are also in contact with other victims and can help law enforcement combine cases across jurisdictions and provide actionable intelligence.