Brexit 2021: implications for the security landscape

This article examines how the UK’s post-Brexit arrangements will affect national security and cyber investigations, highlighting reduced real-time access to Europol and SIS2, changes to extradition and evidence requests (European Investigation Orders replaced by slower Letters Rogatory), continued adoption of GDPR/NIS, and the need for continued cooperation to mitigate risks from cybercriminals and state-sponsored actors; it uses examples like DisrupTor, WannaCry, and the SolarWinds supply-chain compromise to illustrate wider threats but does not report a new or active incident.