# Regulatory guidance to mitigate SIM risks

1. **Regulatory coordination: -** a bilateral Memorandum of Understanding (MOU) related DFS should be in place between the telecommunications regulator and the Central Bank on SIM swaps. A sample MOU is included at Annex B of the [Technical report on SS7 vulnerabilities and mitigation measures for digital financial services transactions](https://www.itu.int/en/ITU-T/extcoop/figisymposium/Documents/ITU_SIT_WG_Technical%20report%20on%20the%20SS7%20vulnerabilities%20and%20their%20impact%20on%20DFS%20transactions_f.pdf)
2. **Regulators should encourage Mobile network operators to adopt appropriate controls to mitigate SIM risk and Fraud (see** [**Mobile network operator**](/sim-swap-threats/security-recommendations-to-protect-against-dfs-sim-risks-and-sim-swap-fraud/mobile-network-operator-controls-to-mitigate-sim-risks-and-fraud.md) **controls and** [**DFS operator controls**](/sim-swap-threats/security-recommendations-to-protect-against-dfs-sim-risks-and-sim-swap-fraud/dfs-operators-controls-to-mitigate-sim-risks-and-fraud.md)**).**


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