From Cold War Dead Drops to Velvet Revolution Betrayals, How the City of a Hundred Spires Became Europe’s Espionage Playground.
In a city where Gothic alleyways twist like secrets and the Vltava River reflects whispers of betrayal, Prague has long been more than a postcard of cobblestones and castle gates. For decades, it was the stage for a high-stakes ballet of spies—a place where ideologies clashed, defectors vanished, and the very air seemed to hum with coded messages. Before the fall of the Iron Curtain, the Czech capital wasn’t just a backdrop for espionage; it was the hub, a “Casablanca of the Cold War,” where MI6, the KGB, StB, and CIA operatives wove a web of intrigue as intricate as the city’s own skyline.

The SIS Building, also called the MI6 Building, at Vauxhall Cross houses the headquarters of the Secret Intelligence Service (SIS), also known as Military Intelligence, Section 6 (MI6), the United Kingdom’s foreign intelligence agency.
The Interwar Prelude
Espionage in Prague didn’t begin with the Cold War. In the 1920s and ’30s, the newly minted Czechoslovak Republic became a magnet for exiled revolutionaries, anarchists, and intelligence scouts. Nestled between a revanchist Germany, authoritarian Poland, and Soviet Russia, the city thrived as a crossroads of political ferment. Café Louvre, with its Art Nouveau flourish, reportedly hosted Bolshevik agents and anti-fascist dissidents debating over coffee, while the stately Hotel Pariz became a nest for Nazi informants preparing for the looming annexation of the Sudetenland—a move sanctioned by the Munich Agreement of 1938.
But it was World War II that sharpened Prague’s edge as a spy nexus. Reinhard Heydrich, the Nazi “Butcher of Prague,” ruled from Prague Castle, his regime countered by Czech resistance heroes and Allied intelligence networks. The 1942 assassination of Heydrich by Czechoslovak paratroopers—trained and supported by the British Special Operations Executive (SOE)—was a daring act of defiance that cemented the city’s reputation as a place where shadows held power.
Cold War Chessboard
Post-1948, when Czechoslovakia fell to a communist coup, Prague became a Soviet satellite—and a playground for spies. Its location in the heart of Europe, porous borders, and labyrinthine streets made it ideal for clandestine meets. Western agencies prized it as a listening post: close enough to Moscow’s orbit to gather intel, yet far enough to operate with relative freedom.
The StB (Státní bezpečnost), Czechoslovakia’s secret police, perfected the art of surveillance. Bugged apartments, wiretapped phones, and a network of informants—nearly 140,000 at the regime’s peak—turned the city into a panopticon. Yet even under the StB’s watch, spies thrived. Dead drops were hidden in the statues of Charles Bridge. Microfilm changed hands in the foggy corners of Wenceslas Square. The iconic Hotel Jalta, rumored to have been equipped with listening devices, hosted diplomats and double agents who knew their every word might be recorded.
Among the most infamous chapters was the 1953 disappearance of American CIA officer William “Wild Bill” Colby, who later resurfaced (unharmed) after a botched mission. While this incident is not widely documented in mainstream accounts, it remains a part of Prague’s espionage lore. Then there was the 1968 Prague Spring, when Soviet tanks rolled in to crush reformist dreams—a crisis that saw KGB operatives flood the city, posing as journalists and students to root out dissent.
The Double Agents and Their Dramas
Prague’s spy scene brimmed with characters ripped from le Carré novels. Take Lieutenant General Augustin Prchal, a Czech pilot who defected to the West in 1953, only to be later accused of being a triple agent. Or the tragic tale of Karel Koecher, the StB mole who infiltrated the CIA in the 1970s, feeding secrets to Moscow while living a double life in New York.
But perhaps no story captures Prague’s allure like that of British diplomat-turned-KGB informant Kim Philby. During his 1949 posting to the city, Philby—already a Soviet asset—reportedly used Prague’s fog of paranoia to pass British and American secrets to Moscow, all while sipping slivovitz in dimly lit taverns. While Philby’s time in Prague was just one chapter in his long career as a Soviet mole, it remains a testament to the city’s role in Cold War espionage.
Velvet Revolution, Velvet Betrayals
Even the 1989 Velvet Revolution, which toppled the regime, unfolded like a spy thriller. As protesters flooded the streets, the StB scrambled to destroy files, leaving shreds of classified documents littering the streets. Later revelations exposed shocking truths: dissident leaders like Václav Havel had been surveilled for decades, their inner circles peppered with informants.
But old habits die hard. Post-communism, Prague remained a hotspot. In the 1990s, Russian mafia kingpins and oligarchs used the city to launder money and broker deals. The 2000s saw cyber espionage rise, with hackers targeting Czech institutions from sleek, anonymous offices. And in 2010, Prague’s streets echoed with Cold War déjà vu when a Russian spy ring—linked to the infamous “Illegals Program” uncovered in the U.S.—was exposed, leading to a dramatic diplomatic expulsion. While the spies were active in multiple countries, Prague served as one node in their network.
Spies in the Age of Instagram
Walk through Prague today, and the ghosts of spies linger. The former StB headquarters on Bartolomějská Street—now a sleek hotel—still gives locals chills.
The Eternal Game
In the end, Prague’s spy legacy is etched into its stones. It’s in the way a foggy morning on Charles Bridge feels like a cover for clandestine rendezvous, or how the Vltava’s currents seem to carry echoes of coded messages. As novelist John le Carré once wrote, “A spy is like a writer… He needs a good story.” And Prague, with its layers of beauty and darkness, will always be the perfect setting.
How a British Agent’s Revelation Shook Czech Intelligence
In early February 1999, a political and intelligence scandal erupted in the Czech Republic, revealing tensions between the Czech Security Information Service (BIS) and British intelligence (MI6). At the center of the controversy was the dismissal of Karel Vulterin, the director of BIS, and the role of Christopher Hurran, the head of MI6’s Prague station. The incident not only exposed the fragility of international intelligence cooperation but also highlighted the personal and professional rivalries that can undermine such collaborations.
The Spark
The chain of events began when Jaroslav Bašta, the Czech minister responsible for intelligence services, received a letter from Christopher Hurran, the MI6 station chief in Prague. The letter reportedly contained serious allegations about the competence of Vulterin and the BIS, prompting the Czech government to take immediate action. Vulterin was dismissed, with the government citing concerns over national security. However, the details of the letter and the exact nature of the allegations remained shrouded in secrecy, leading to rampant speculation.
Bašta, in a televised interview, indirectly confirmed that the impetus for Vulterin’s dismissal came from British intelligence. When pressed by journalists about whether the letter was authored by a British agent, Bašta refused to comment directly, only stating that the circumstances were too sensitive to discuss publicly. This lack of transparency fueled speculation and raised questions about the credibility of the government’s decision.
The Backstory
The roots of the scandal lay in a joint intelligence operation targeting Jabir Salim, an Iraqi intelligence operative based in Prague. Salim was suspected of planning an attack on Radio Free Europe, a U.S.-funded broadcaster that had recently launched Radio Free Iraq, a station aimed at destabilizing Saddam Hussein’s regime. Christopher Hurran, leading the MI6 operation, believed that Salim could be turned into a double agent, providing valuable intelligence on Iraq’s secret police, the Mukhabarat.
Hurran requested the assistance of the BIS to monitor Salim’s activities. However, the operation took a disastrous turn when Salim disappeared. The BIS admitted to losing track of him, and it was later discovered that Salim had fled to Germany, where he sought asylum. This failure not only embarrassed the Czech intelligence service but also infuriated British and American operatives, who saw it as a missed opportunity to infiltrate Saddam’s regime.
The Fallout
The fallout from the failed operation strained relations between the BIS and MI6. Hurran, frustrated by what he perceived as Vulterin’s incompetence, took the unusual step of sending a formal complaint to the Czech government. This move, which bypassed traditional diplomatic channels, was seen as a breach of protocol and further escalated tensions.
In response, Vulterin’s allies within the BIS allegedly leaked Hurran’s identity, address, and sexual orientation to the Czech media, a move that was both personal and damaging. Hurran, an openly gay man, became the subject of public scrutiny, with his private life making headlines in tabloid newspapers. While the leak was widely interpreted as an attempt to discredit Hurran, the exact motives and perpetrators remain unclear.
The Bigger Picture
The scandal had broader implications for Western efforts to destabilize Saddam Hussein’s regime. Prague, once a key hub for Cold War espionage, had become an unlikely center for operations against Iraq. The failure of the Salim operation and the subsequent fallout dealt a significant blow to these efforts. While Hurran’s career survived the scandal, the incident exposed the challenges of coordinating intelligence activities in a post-Cold War world.
The dismissal of Karel Vulterin and the exposure of Christopher Hurran’s private life marked a low point in Czech-British intelligence relations. The incident highlighted the delicate balance between professional collaboration and personal animosities in the world of espionage. While the dust eventually settled, the scandal left a lasting impact on both the BIS and MI6, serving as a cautionary tale about the risks of mixing personal grievances with high-stakes intelligence work.
Prague’s espionage history is a tapestry of fact and legend, where the lines between truth and fiction often blur. By clarifying speculative claims and providing additional context, this revised version aims to strike a balance between engaging storytelling and historical accuracy. The city’s role as a crossroads of secrets endures, reminding us that even in the age of Instagram, the shadows of the past still linger.