Spanish authorities have apprehended a suspected hacker believed to be affiliated with the Cyber Army of Russia Reborn, a pro-Russian hacktivist group implicated in multiple attacks on critical infrastructure providers in the US and Europe. The arrest, which occurred in March, was announced by Spain's national police on Monday, and was the result of an investigation sparked by an FBI tip in August 2025. The FBI's Los Angeles field office collaborated with Spanish officials to capture the alleged cybercriminal at his home in Palencia. This development highlights the involvement of state-aligned actors in cybercrime, shifting the threat model from a purely criminal context to a geopolitical one1. The collaboration between the FBI and Spanish authorities underscores the increasing importance of international cooperation in combating cyber threats. This matters to cybersecurity practitioners because it requires a different approach to threat assessment and mitigation, one that takes into account the complexities of nation-state involvement.