To date, the Arctic has played only a minor role in European efforts to achieve digital sovereignty. Yet digital infrastructure in the High North is a key component of this endeavour. The European Union’s (EU) Arctic Strategy, which is due to be updated this year, should therefore not be limited to traditional security issues. This is particularly true in light of hybrid threats in the Baltic Sea region. Of particular importance are European projects to expand Arctic submarine cable infrastructure, which constitute critical infrastructure. However, these initiatives require an ambitious EU that recognises its capacity to deliver innovation and sustainability in the development of green technologies.