Six Bulgarians Convicted of Spying for Russia in the UK marks a significant development in the ongoing struggle against foreign espionage. These individuals, acting on behalf of Russian intelligence agencies, executed sophisticated operations that compromised public safety and national security. Their sentencing at the Old Bailey reflects the gravity of their crimes and the increasing threat posed by outsourced espionage in the modern era.
Bulgarians Convicted of Spying for Russia in Britain
Between 2020 and 2023, a covert espionage ring led by Bulgarian national Orlin Roussev operated across Europe, with the United Kingdom as a focal point of their activities. The group was directed from abroad by Jan Marsalek, an Austrian fugitive believed to be residing in Moscow and working with the Russian FSB and GRU.
Marsalek became infamous following the collapse of Wirecard, a payments company at the center of a €1.9 billion fraud. Leveraging his position and international contacts, Marsalek directed a complex network of spies that included Roussev and his five co-conspirators.
Roussev, aged 47, led the group with a high degree of coordination and strategic planning. He orchestrated surveillance and intelligence-gathering missions targeting Russian dissidents, investigative journalists, and even Ukrainian military personnel.
Notably, the group operated out of a guesthouse in Great Yarmouth, Norfolk, where they plotted missions and coordinated logistics. Roussev’s role in leading six high-level operations made him a central figure in this espionage network.
The operations included surveillance of journalists such as Christo Grozev, an investigative reporter who played a critical role in exposing the Kremlin’s involvement in the poisoning of opposition leader Alexei Navalny.
The spy ring also targeted Ukrainian soldiers undergoing training at a U.S. military base in Stuttgart, Germany, using advanced military-grade spying equipment to extract sensitive information. These missions demonstrated not only the group’s access to sophisticated resources but also their direct ties to Russian state interests.
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The group’s activities were financially lucrative, with discussions of payments amounting to €1 million, indicating the significant value placed on their work by Russian intelligence.
While some of the funds were intended to cover operational costs, a large portion allowed the defendants to live luxuriously. The judge emphasized that this level of funding showed the importance of their work to Russia’s geopolitical strategy.
The Defendants and Their Sentences
Each member of the espionage ring was given a sentence reflecting their role in the operations and the degree of culpability. The most severe sentence was handed to Orlin Roussev, who received 10 years and eight months in prison. His lieutenant, Biser Dzhambazov, aged 44, was sentenced to 10 years and two months. Both had pleaded guilty, and the strength of the investigation left them with no alternative but to admit their guilt.
Katrin Ivanova, 33, who played a role as a “honeytrap,” was sentenced to nine years and eight months. The court acknowledged that her involvement may have been influenced by her relationship with Dzhambazov, but Judge Hilliard stressed that she joined the operation of her own free will. The use of women in such roles is a well-known espionage tactic, aimed at manipulating and extracting information from targets through emotional or romantic entanglement.

Another woman involved, Vanya Gaberova, aged 30, received a sentence of six years, eight months, and three weeks. While allowances were made for her mental health issues, including claustrophobia, the court found that she was fully aware of her actions and appeared to find the espionage work “exciting and glamorous.”
Tihomir Ivanchev, aged 39, another lieutenant in the ring, was sentenced to eight years. The judge noted that his involvement ended before the group’s arrest in 2023, and acknowledged reports of good behavior. Ivan Stoyanov, 33, who pleaded guilty at a later stage, received a sentence of five years and three weeks.
All six defendants were told they would serve at least half of their sentences before being eligible for parole. Upon completion, they will face automatic deportation to Bulgaria. These sentences serve as a warning to others who may consider participating in foreign espionage against the UK.
Implications for National Security and International Espionage
This case underscores the growing threat posed by state-sponsored espionage, particularly that which is “outsourced” to non-state actors or operatives with no formal link to intelligence agencies.
Commander Dominic Murphy of the Metropolitan Police’s Counter Terrorism Command highlighted this emerging trend, emphasizing the increasing number of state-threat cases now being handled in Britain. The outsourcing model offers plausible deniability to foreign governments, complicating efforts to hold them directly accountable for acts of espionage.
The UK’s robust response, both in investigative and judicial terms, sends a strong message that it will not tolerate foreign interference. Mr. Justice Hilliard commended the diligence and determination of law enforcement officers whose efforts exposed the network.
The court heard that victims of the spy ring were deeply alarmed and had to take significant steps to bolster their personal security. Given Russia’s past actions against individuals it perceives as enemies, such concerns were deemed entirely justified.
Frank Ferguson, Head of the CPS Special Crime and Counter Terrorism Division, remarked that the group’s actions struck at the heart of the UK’s promise of safety for persecuted individuals and those who speak out against oppressive regimes. By targeting journalists and dissidents, the spy ring sought to silence opposition voices and erode public trust in democratic values.

The role of technology in these operations is also telling. The group’s use of military-grade spying devices to collect sensitive data, including phone numbers of Ukrainian troops, illustrates the increasing sophistication of modern espionage.
This type of surveillance can have serious repercussions, potentially exposing personnel to targeted operations and endangering lives. It also raises concerns about the security of allied military operations and the extent to which Russian intelligence is willing to go in order to gain a strategic edge.
Perhaps most chilling is the involvement of Jan Marsalek, a man whose financial crimes already shook European markets. His transition from corporate fraudster to alleged Russian spy master paints a picture of how international criminal networks can evolve and intersect with geopolitical agendas. His use of Bulgarian nationals as operatives also speaks to how Russian intelligence can exploit individuals from vulnerable or financially unstable backgrounds to further their global aims.
The UK’s handling of this case may set a precedent for how future espionage prosecutions are conducted. The detailed and transparent trial, along with the televised sentencing, reflects a desire to maintain public confidence and reassure citizens that threats to national security are taken seriously. It also represents a powerful stance against attempts by hostile states to undermine British sovereignty.
The jailing of Bulgarians Convicted of Spying for Russia in the UK represents a significant moment in the nation’s fight against foreign espionage. It exposes the increasingly complex and outsourced nature of modern intelligence work, where operatives are funded and directed remotely to carry out missions against perceived enemies of a foreign state.
The involvement of Russian intelligence, through a known fugitive like Jan Marsalek, adds a further layer of intrigue and concern. This case serves as a stark reminder that espionage remains a real and evolving threat.
As global tensions rise and democratic institutions are targeted, nations like the UK must remain vigilant and proactive in protecting their interests. The convictions handed down at the Old Bailey not only hold the individuals accountable but also reaffirm the UK’s commitment to upholding justice, security, and the rule of law.