FBI and Spanish Police Arrest Alleged Cyber Army of Russia Reborn Member
🚨 FBI and Spanish Police Make Significant Arrest 🚨
Spanish police have arrested an alleged member of the pro-Russia hacktivist group Cyber Army of Russia Reborn, also known as Z-Pentest, in an operation carried out with support from the FBI. This arrest is part of ongoing measures to identify and disrupt individuals involved in cyberattacks targeting critical infrastructure.
The FBI confirmed that its Los Angeles field office collaborated with Spain’s National Police to coordinate this significant arrest. US authorities stated that this action falls under Operation Riptide, an international effort aimed at disrupting malicious cyber activity and holding those responsible accountable.
🔍 Background on the Operation
The arrest also fits into the FBI’s broader Operation Red Circus campaign, announced in December 2025, which aims to counter Russian state-sponsored cyber threats affecting the United States and allied interests. As part of this initiative, the FBI and several government partners published a joint Cybersecurity Advisory warning that pro-Russia hacktivist groups have been conducting opportunistic attacks against critical infrastructure, including organizations in the water, agriculture, and energy sectors.
Cyber Army of Russia Reborn has been active since Russia invaded Ukraine and has repeatedly claimed responsibility for distributed denial-of-service (DDoS) attacks and other disruptive cyber operations against government agencies, public services, and private organizations in countries supporting Ukraine. Security researchers have also linked the group to campaigns targeting industrial control systems (ICS) and critical infrastructure.
👮‍♂️ Ongoing Investigation
Spain’s National Police announced the arrest in a separate statement but has not publicly released the suspect’s identity. Authorities have not disclosed specific charges or provided details about the individual’s alleged role within the group. The investigation remains ongoing.
This is not the first time authorities have taken action against individuals linked to pro-Russia hacktivist operations. In December 2025, US authorities took custody of a Ukrainian woman, Victoria Dubranova, also known as “Vika,” a.k.a. “Tory,” a.k.a. “SovaSonya,” accused of assisting the pro-Russia hacking group NoName057(16), another collective known for launching DDoS attacks against governments and public institutions in Europe.
The latest arrest highlights the continued cooperation between US and European law enforcement agencies as they pursue individuals accused of participating in cybercrime and politically motivated hacking campaigns. Both the FBI and Spain’s National Police have stated they will continue working with international partners to investigate and disrupt malicious cyber activity.