The IRS Criminal Investigation Division is collaborating with Ukrainian investigators to target Russian individuals who may be using cryptocurrencies to hide their assets following Russia's invasion of Ukraine. The agency is working closely with Chainalysis, a blockchain analytics firm, to provide specialized tools and training to Ukrainian law enforcement in tracing blockchain transactions. The IRS is sponsoring Ukrainian investigators' access to a Chainalysis tool designed to aid in crypto-related probes and has offered virtual and in-person training sessions on tracing blockchain transactions. This move is part of the IRS's efforts to combat the use of cryptocurrencies for financial frauds such as money laundering, market manipulation, and tax evasion.