Spanish Guardia Civil officers have dismantled an alleged network that channelled money from online frauds using third-party bank accounts, known as “mules”, with 10 arrests, nine in Valladolid province. The operation, called MARCOPA/WITHDRAW, involved agents in Valladolid and Barcelona and followed suspected transfers and cash withdrawals designed to make the money harder to trace. Investigators say the criminal structure was based in Valladolid, with further actions carried out in Terrassa. Authorities allege the group recruited people to allow their accounts to receive illicit funds. After the money arrived, other members allegedly moved it through transfers or withdrew cash, while participants in Terrassa handled parts of the operations, helping to obscure the identity of the final recipients. The Guardia Civil said the scheme allegedly harmed victims across Spain through several types of cyber fraud, including the “son in trouble” scam, where criminals impersonate a relative to demand urgent payments, and phishing, using deception to obtain banking or personal details. Police put the total amount involved at about 240,000 euros. During the investigation, officers identified roles within the organisation, including recruiters and members responsible for receiving, moving and withdrawing funds. As a result of the operation, 10 people were detained and charged by Guardia Civil with fraud, money laundering and membership of a criminal organisation. Nine of the arrests were made in Valladolid province, and one was made in Terrassa. The Guardia Civil investigation is ongoing.