US Senator Elizabeth Warren, Ranking Member of the Senate Banking, Housing, and Urban Affairs Committee, sent a letter to Beast Industries founder Jimmy “MrBeast” Donaldson and Chief Executive Officer Jeffrey Housenbold seeking information on the company’s acquisition of Step, a financial technology app designed to provide banking services to children, and its apparent interest in expanding into cryptocurrency and decentralized finance. The letter highlights concerns about protections for Step’s young customers, citing Step materials that encouraged children to press parents to allow crypto investments and pointing to Step’s partnership with Evolve Bank & Trust. It references Evolve’s role in the 2024 Synapse bankruptcy, where a court mediator found up to USD 96 million in customer funds could not be located, as well as a Federal Reserve enforcement action for deficiencies in Evolve’s anti-money laundering and compliance programs and a data breach exposing customer data. Warren requested responses to detailed questions about Beast Industries’ plans for Step by April 3, 2026.