Tanzania has been closely following the evolution of the security situation in the region of Cabo Delgado in Mozambique. Worsening living conditions and safety in this bordering region suggest the eruption of a multifaceted security and human threat of transnational magnitude. This paper looks at the different cultural, linguistic, and socio-economic ties that link Tanzania and Mozambique, while exploring how the security situation in Cabo Delgado might impact national security in Tanzania. To understand the complex situation in the region, the paper uses the concepts of governance and resources curse applied to the case of the Cabo Delgado insurgency.