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Recent escalations between Ukraine and Russia have spotlighted the operations of the Federal Security Service. In occupied Crimea, the FSB detained two men, accusing them of treason for alleged leaks on military facilities to Ukraine. Meanwhile, Ukraine's SSU has arrested multiple FSB agents, thwarting planned terrorist attacks and arson throughout the regions, notably in Kherson and Kharkiv. The SSU’s counterintelligence efforts have been pivotal in uncovering several networks and operatives linked to Russia's espionage campaigns intended to destabilize Ukraine. These developments underscore the ongoing intelligence battle and the strategic importance of countering FSB operations.

What actions has the FSB been accused of in occupied Crimea?

In occupied Crimea, the FSB has been accused of treason-related activities, such as detaining individuals for allegedly passing on critical information about Russian military facilities to Ukrainian intelligence. This marks a significant development in the ongoing intelligence conflicts between Russia and Ukraine.

How has the SSU responded to the FSB's operations in Ukraine?

The Ukrainian Security Service (SSU) has conducted numerous operations leading to the arrest of multiple FSB agents. These agents were involved in espionage, sabotage, and planning terrorist attacks across several Ukrainian regions, showcasing the SSU's crucial role in maintaining national security.

What are the implications of FSB activities in Kharkiv?

In Kharkiv, FSB agents orchestrated several plots, including manufacturing explosives intended for terrorist attacks. The city's security has been jeopardized, highlighting the intense espionage activities of the FSB and the ongoing strategic counteractions by Ukraine's SSU to protect critical infrastructure and public safety.

What role does the FSB play in Russian intelligence operations against Ukraine?

The FSB is a central figure in Russian intelligence operations targeting Ukraine, conducting espionage, spreading misinformation, and coordinating military strikes. Their operations seek to destabilize Ukraine, but Ukrainian counterintelligence is actively working to dismantle these networks to prevent further acts of aggression.

Why are FSB detentions significant for Ukrainian security?

The detentions of FSB agents are significant as they reveal continuous attempts by Russia to undermine Ukrainian sovereignty through espionage and sabotage. These arrests disrupt harmful operations and signal to both national and international audiences the ongoing intelligence warfare that threatens regional stability.

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SSU has exposed two Russian collaborators who activated more than 70 Starlink terminals for ruscists. PHOTO SSU has exposed two Russian collaborators who activated more than 70 Starlink terminals for ruscists. PHOTO The Security Service’s counter-intelligence unit has uncovered two more Russian agents in Kyiv who, on behalf of the FSB, were registering Starlink satellite terminals for armed groups in the aggressor state. 4 389 15 Previously in trend: High treason

FSB agents who carried out terrorist attack in Kamianets-Podilskyi have been sentenced to life imprisonment and 15 years’ imprisonment. PHOTOS FSB agents who carried out terrorist attack in Kamianets-Podilskyi have been sentenced to life imprisonment and 15 years’ imprisonment. PHOTOS Based on evidence gathered by the Security Service, two FSB agents who had planned to detonate a homemade bomb near the TCR building in Kamianets-Podilskyi in February 2025 have been sentenced to prison terms. 1 705 1 Previously in trend: High treason

FSB coordination centre in occupied Kherson region has been struck, up to 100 military personnel may have been present there, - SSU. VIDEO FSB coordination centre in occupied Kherson region has been struck, up to 100 military personnel may have been present there, - SSU. VIDEO Special forces from the SSU’s ‘Alpha’ Special Operations Centre carried out a successful strike on the coordination centre and base of Russian FSB personnel, which was located in one of the holiday resorts in the temporarily occupied Kherson region. 5 034 12 Previously in trend: Elimination of Russian occupiers

"Woke up and was f#cking gobsmacked," – Kyivstoner’s first comment to Ukrainian journalists on FSB accusations. VIDEO "Woke up and was f#cking gobsmacked," – Kyivstoner’s first comment to Ukrainian journalists on FSB accusations. VIDEO While the FSB is searching for the organizers of the "terrorist attack" in the Moscow region, Censor.NET found the main suspect and called him. Here is how Kyivstoner responded to the Russian security services’ accusations in his first comment to Ukrainian journalists. 10 690 37

Rapper Kyivstoner explained his involvement in planning of explosions in Moscow region: "What f#cking terrorist attack? I was playing Dota!". VIDEO Rapper Kyivstoner explained his involvement in planning of explosions in Moscow region: "What f#cking terrorist attack? I was playing Dota!". VIDEO The Russian Federal Security Service has concocted yet another absurd hoax, claiming to have "foiled" a large-scale drone attack on a strategic defence industry facility in a residential area on the outskirts of Moscow. The Russian security service has officially named the well-known Ukrainian... 8 605 31 Previously in trend: FSB provocations

FSB announced that it had "foiled terrorist attack" in Moscow region, accusing Kyivstoner, rapper of Ukrainian origin, of planning it FSB announced that it had "foiled terrorist attack" in Moscow region, accusing Kyivstoner, rapper of Ukrainian origin, of planning it The Russian Federal Security Service (FSB) announced that it had "foiled" a large-scale drone attack on a strategic facility in a residential area of the Moscow region, one of the organizers of which was allegedly Kyivstoner, a rapper of Ukrainian origin. 5 227 21 Previously in trend: FSB provocations

In occupied Crimea, FSB has detained two men on charges of "treason": they face life imprisonment In occupied Crimea, FSB has detained two men on charges of "treason": they face life imprisonment Russia’s FSB has announced the arrest of two residents of occupied Crimea, whom it accuses of "treason" for allegedly passing on information to Ukraine about military facilities on the peninsula. 711 1 Previously in trend: Ukrainians convicted in the Russian Federation

SSU detains foreign FSB agent who adjusted Russian strikes on Kherson. PHOTOS SSU detains foreign FSB agent who adjusted Russian strikes on Kherson. PHOTOS The Security Service of Ukraine has detained an FSB agent in Kherson who was adjusting Russian strikes on the positions of the Defence Forces in the region. He turned out to be a native of the South Caucasus who had been living in Ukraine since the 1990s on a forged passport and had been heading... 2 722 7 Previously in trend: Recruited FSB agents

SSU, National Police and the Prosecutor’s Office have exposed a further four Russian agents involved in arson attacks in Ukraine. PHOTOS SSU, National Police and the Prosecutor’s Office have exposed a further four Russian agents involved in arson attacks in Ukraine. PHOTOS The Security Service, the National Police and the Prosecutor’s Office have exposed a further four FSB accomplices who carried out contract arson attacks in the Kirovohrad and Odesa regions. 1 266 13 Previously in trend: Detention of arsonists

Invented "captivity" to hide meeting with FSB handler: ex-official from Sumy region sentenced to 15 years Invented "captivity" to hide meeting with FSB handler: ex-official from Sumy region sentenced to 15 years The court sentenced a former deputy head of a community in the Sumy region, whom the SSU exposed in November 2023 for directing shelling of the Sumy region, to 15 years in prison with confiscation of property. 1 492 2 Previously in trend: Conviction of adjusters

SSU detained FSB agent in Kharkiv: he manufactured 12 kg of explosives for terrorist attacks in city. PHOTOS SSU detained FSB agent in Kharkiv: he manufactured 12 kg of explosives for terrorist attacks in city. PHOTOS The SBU has foiled a series of terrorist attacks in Kharkiv. An FSB agent had manufactured explosives and was planning to carry out bombings in the city centre. He was arrested whilst preparing the explosive devices. 1 976 6 Previously in trend: Recruited FSB agents

SSU thwarted attempt to deliver drone loaded with explosives to Odesa for terrorist attack. PHOTOS SSU thwarted attempt to deliver drone loaded with explosives to Odesa for terrorist attack. PHOTOS Ukraine's security services have uncovered an FSB smuggling route through which an attack drone intended for terrorist attacks was being transported to Odesa. 2 314 8 Previously in trend: Recruited FSB agents

SSU has detained another FSB spotter who directed Russian strikes on Kharkiv region. PHOTO SSU has detained another FSB spotter who directed Russian strikes on Kharkiv region. PHOTO The Security Service’s counter-intelligence unit has detained another FSB agent in the Kharkiv region. The perpetrator adjusted ruscist missile, bomb, and drone attacks on the frontline areas of the region. 1 397 9 Previously in trend: Detention of adjusters

SSU hit FSB headquarters and Pantsir-S1 on temporarily occupied territory: about 100 ruscists killed and wounded – Zelenskyy. VIDEO SSU hit FSB headquarters and Pantsir-S1 on temporarily occupied territory: about 100 ruscists killed and wounded – Zelenskyy. VIDEO President Volodymyr Zelenskyy reported a successful strike by the SSU’s Alpha Special Operations Center on an FSB headquarters in occupied territory. 6 303 19 Previously in trend: Elimination of Russian occupying forces

SSU has detained FSB agent in its own frontline unit: traitor faces life imprisonment. PHOTO SSU has detained FSB agent in its own frontline unit: traitor faces life imprisonment. PHOTO The Security Service of Ukraine has reported the exposure of an FSB agent within one of the security service’s frontline units. 7 283 19 Previously in trend: Disclosure of collaborators

A kamikaze drone struck the FSB office in Chechnya. VIDEO of explosion A kamikaze drone struck the FSB office in Chechnya. VIDEO of explosion A video has been published online showing a successful attack by a Ukrainian drone on the FSB headquarters in the village of Znamenskoye, in the Chechen Republic. 8 358 32 Previously in trend: Striking Russia

Drones have struck an FSB building in occupied Crimea, according to media reports Drones have struck an FSB building in occupied Crimea, according to media reports In the temporarily occupied Crimea, drones attacked the building of the Russian FSB Border Guard Service in Armyansk. 2 554 3 Previously in trend: Explosions in Crimea

SSU has exposed FSB agent who organised arson attacks on military vehicles in Kyiv. PHOTO SSU has exposed FSB agent who organised arson attacks on military vehicles in Kyiv. PHOTO The Security Service has detained another FSB agent in Kyiv. Acting on orders from the Russians, he organised arson attacks on Defence Forces vehicles in the Ukrainian capital. 2 134 6 Previously in trend: burning military cars

Railway worker who adjusted shelling of Kharkiv region on FSB orders sentenced to 15 years in prison. PHOTO Railway worker who adjusted shelling of Kharkiv region on FSB orders sentenced to 15 years in prison. PHOTO Based on evidence gathered by counterintelligence officers and investigators of the Security Service of Ukraine, an FSB agent exposed by the SBU in Kharkiv Oblast in August 2025 has been sentenced to 15 years in prison with confiscation of property. 926 3 Previously in trend: Conviction of adjusters

Russian agent exposed: prepared cache of weapons for contract killings in Odesa on behalf of FSB, - SSU. PHOTO Russian agent exposed: prepared cache of weapons for contract killings in Odesa on behalf of FSB, - SSU. PHOTO The SBU has foiled a series of contract killings in Odesa. Following a series of comprehensive operations in the port city, an FSB agent has been detained; he had set up a cache there containing ammunition and firearms, which were intended to be used in high-profile assassinations. 2 452 1 Previously in trend: Recruited FSB agents

FSB hitman who tried to kill city council official in Zaporizhzhia region gets 15 years in prison. PHOTO FSB hitman who tried to kill city council official in Zaporizhzhia region gets 15 years in prison. PHOTO Based on evidence gathered by the Security Service of Ukraine (SSU), an FSB agent who had been preparing to kill a city council official in the Zaporizhzhia region has been sentenced to 15 years in prison with confiscation of property. 1 451 6 Previously in trend: High treason

Passed coordinates for strikes on Kyiv to Russia: woman sentenced to 15 years for treason Passed coordinates for strikes on Kyiv to Russia: woman sentenced to 15 years for treason A Ukrainian citizen has been sentenced to 15 years in prison for passing on the coordinates of military facilities in the capital to the enemy. 1 328 5 Previously in trend: High treason

SSU has detained FSB agent who was planning terrorist attacks against military in Khmelnytskyi. PHOTOS SSU has detained FSB agent who was planning terrorist attacks against military in Khmelnytskyi. PHOTOS The Security Service of Ukraine has exposed and detained an FSB agent who was planning a series of terrorist attacks against Ukrainian military personnel in Khmelnytskyi. 3 994 7 Previously in trend: burning military cars Recruited FSB agents

FSB embezzled funds from space programs and used them for its own agencies, - intelligence FSB embezzled funds from space programs and used them for its own agencies, - intelligence Russian intelligence agencies are using state space projects to embezzle budget funds. 1 487 6

SSU has detained FSB agent who was preparing to blow up power substation in Kropyvnytskyi. PHOTO SSU has detained FSB agent who was preparing to blow up power substation in Kropyvnytskyi. PHOTO Law enforcement officers have uncovered a man recruited by the FSB who was planning to plant explosives near an electrical substation in Kropyvnytskyi. 1 572 13 Previously in trend: Recruited FSB agents

SSU and National Police have detained further six Russian agents involved in arson attacks in Ukraine. PHOTOS SSU and National Police have detained further six Russian agents involved in arson attacks in Ukraine. PHOTOS The Security Service and the National Police have detained a further six Russian agents who were responsible for arson attacks in various regions of Ukraine. 1 820 11 Previously in trend: Detention of arsonists

Invaders have announced arrest o resident of occupied Feodosia for allegedly passing information to Ukrainian intelligence Invaders have announced arrest o resident of occupied Feodosia for allegedly passing information to Ukrainian intelligence In the temporarily occupied Crimea, Russian security forces announced the arrest of a resident of Feodosia who is accused of allegedly passing on information about Russian military facilities. 634 1 Previously in trend: Reprisals in Russian-occupied Crimea

SSU has detained two FSB spotters who directed missile strikes on Dnipro and Kryvyi Rih. PHOTOS SSU has detained two FSB spotters who directed missile strikes on Dnipro and Kryvyi Rih. PHOTOS The Security Service’s counter-intelligence unit has detained two more FSB agents in the Dnipropetrovsk region. The suspects were directing ruscists' missile and drone attacks on Dnipro and Kryvyi Rih. 1 801 7 Previously in trend: Detention of adjusters

SSU detained FSB agent who, under guise of fulfilling defence orders, coordinated attacks on Kyiv SSU detained FSB agent who, under guise of fulfilling defence orders, coordinated attacks on Kyiv The Security Service detained another spotter who guided Russian shelling on Kyiv. He turned out to be a 59-year-old entrepreneur recruited by the FSB who was involved in the manufacture of armored glass for Defence Forces vehicles. 3 891 10 Previously in trend: High treason Detention of adjusters

Correspondence of Russian General Demurchiev made public: "I have prisoner—should I liquidate him or give him to you?". PHOTOS Correspondence of Russian General Demurchiev made public: "I have prisoner—should I liquidate him or give him to you?". PHOTOS Journalists from the "Schemes" project (Radio Liberty) obtained a large collection of correspondence and voice messages from Russian Major General Roman Demurchiev, deputy commander of the 20th Combined Arms Army of the Russian Armed Forces, which operates in the Lyman direction, among other places. 20 208 14 Previously in trend: War crimes of Russia

SSU and the National Police have neutralised FSB agent network that was preparing new terrorist attacks in Kyiv and Zhytomyr. PHOTOS SSU and the National Police have neutralised FSB agent network that was preparing new terrorist attacks in Kyiv and Zhytomyr. PHOTOS The Security Service and National Police prevented new attempts by the FSB to carry out a series of terrorist attacks in northern Ukraine. 3 909 14 Previously in trend: countering terrorist attacks

FSB agent who set up video traps to direct strikes on Zaporizhzhia was sentenced to 15 years in prison FSB agent who set up video traps to direct strikes on Zaporizhzhia was sentenced to 15 years in prison Based on evidence gathered by counterintelligence, the Main Directorate of Internal Security of the Security Service of Ukraine, and investigators from the State Bureau of Investigations, an FSB agent who was detained in Zaporizhia in October 2023 was sentenced to 15 years in prison with... 902 1 Previously in trend: High treason Conviction of adjusters

Case against ex-NSDC deputy secretary Sivkovych, who worked for FSB and fled to Moscow, sent to court Case against ex-NSDC deputy secretary Sivkovych, who worked for FSB and fled to Moscow, sent to court Law enforcement agencies have completed an investigation into a former senior official, an ex-deputy secretary of the National Security and Defense Council (NSDC) and former vice prime minister of Ukraine, whom investigators consider a top FSB agent; the indictment has been sent to court for a... 1 558 31 Previously in trend: High treason

Russia tightens FSB control over communications, - British intelligence Russia tightens FSB control over communications, - British intelligence Russia plans to grant the Federal Security Service (FSB) broad powers over the country's communications networks. 1 502 3 Previously in trend: RF strengthen control over information

SSU exposes Russian agent who was preparing new ruscists’ attacks on Kryvyi Rih’s energy sector. PHOTO SSU exposes Russian agent who was preparing new ruscists’ attacks on Kryvyi Rih’s energy sector. PHOTO The Security Service of Ukraine (SSU) has detained another FSB agent in the Dnipropetrovsk region. He was adjusting ruscists’ missile and drone attacks on the energy infrastructure of Kryvyi Rih. 3 496 10 Previously in trend: Detention of adjusters

SSU exposed FSB agent who guided Russian missiles toward Khmelnytskyi region. PHOTO SSU exposed FSB agent who guided Russian missiles toward Khmelnytskyi region. PHOTO The Security Service has detained another agent of Russia’s FSB in the Khmelnytskyi region. He turned out to be a 53-year-old local resident recruited by the enemy, who was adjusting Russian missile-and-drone attacks on Ukraine’s western region. 1 990 10 Previously in trend: High treason Detention of adjusters

Minor FSB agent who was preparing explosion at Ukrzaliznytsia station in Khmelnytskyi region exposed. PHOTOS Minor FSB agent who was preparing explosion at Ukrzaliznytsia station in Khmelnytskyi region exposed. PHOTOS The Security Service's counterintelligence prevented another Russian sabotage attack on Ukraine's transport infrastructure. 4 588 17 Previously in trend: High treason

SSU and National Police detained FSB agents who carried out arson attacks in Kropyvnytskyi and Chernivtsi. PHOTOS SSU and National Police detained FSB agents who carried out arson attacks in Kropyvnytskyi and Chernivtsi. PHOTOS The Security Service's counterintelligence and the National Police have detained three more FSB agents who, on behalf of the enemy, committed arson in various regions of Ukraine. 1 454 4 Previously in trend: Russia’s recruitment of Ukrainians for sabotage

Agent who directed enemy ballistics at Kyiv’s thermal power plants and spied on Defence Forces has been detained. PHOTOS Agent who directed enemy ballistics at Kyiv’s thermal power plants and spied on Defence Forces has been detained. PHOTOS The Security Service's counterintelligence unit detained another FSB agent who coordinated air strikes on Kyiv's energy infrastructure and spied on the movements of the Defence Forces. 7 889 54 Previously in trend: High treason

Two FSB agents who committed arson in northern regions of Ukraine have been detained. PHOTOS Two FSB agents who committed arson in northern regions of Ukraine have been detained. PHOTOS The Security Service's counterintelligence and the National Police detained two more Russian agents who, on behalf of the FSB, were involved in setting fire to Defence Forces vehicles and mobile communication facilities in Ukraine. 1 434 14 Previously in trend: burning military cars Recruited FSB agents

Russians detain teenager in occupied Mariupol: charged with "high treason," - Russian media. VIDEO Russians detain teenager in occupied Mariupol: charged with "high treason," - Russian media. VIDEO Russian invaders detained a teenager in the temporarily occupied Mariupol. According to the Russians, he was allegedly collecting data on the location of Russian military units for Ukrainian intelligence. 5 387 4 Previously in trend: Occupied territories - Crimea and Donbas

SSU prevented murder of Ukrainian soldier whom Russians tried to blow up. PHOTOS SSU prevented murder of Ukrainian soldier whom Russians tried to blow up. PHOTOS The Security Service's counterintelligence prevented a new terrorist attack in Chernihiv. 3 083 9 Previously in trend: High treason

FSB building burned down as result of night UAV attack in Chechnya, - Russian media. PHOTO FSB building burned down as result of night UAV attack in Chechnya, - Russian media. PHOTO As a result of a UAV attack on the Chechen Republic of the Russian Federation, an FSB building burned down at night. 5 051 5 Previously in trend: Drone attack on Russian regions

FSB agent who worked for enemy detained after his mother had been arrested for preparing terrorist attack. PHOTOS FSB agent who worked for enemy detained after his mother had been arrested for preparing terrorist attack. PHOTOS The Security Service's counterintelligence unit detained another FSB agent in Kharkiv. 3 426 5 Previously in trend: High treason

FSB agent who directed Russian strikes on fuel depots in Zaporizhzhia was sentenced to 15 years in prison FSB agent who directed Russian strikes on fuel depots in Zaporizhzhia was sentenced to 15 years in prison Based on evidence gathered by the Security Service, another FSB agent who spied for the enemy in Zaporizhzhia was sentenced to 15 years in prison with confiscation of property. 574 2 Previously in trend: High treason

SSU detained another FSB agent who adjusted Russian strikes on Kramatorsk. PHOTO SSU detained another FSB agent who adjusted Russian strikes on Kramatorsk. PHOTO The Security Service's counterintelligence unit detained another Russian agent in the Donetsk region. On behalf of the FSB, he adjusted Russian air and artillery strikes on Kramatorsk. 1 879 8 Previously in trend: High treason

SSU prevents terrorist attack in Kharkiv - local FSB agent detained. PHOTO SSU prevents terrorist attack in Kharkiv - local FSB agent detained. PHOTO The SSU counterintelligence service foiled another attempt by ruscists to carry out a new terrorist attack in Kharkiv. 3 079 6 Previously in trend: High treason

FSB agent detained who was supposed to set fire to building of Institute of National Memory in centre of Kyiv. PHOTOS FSB agent detained who was supposed to set fire to building of Institute of National Memory in centre of Kyiv. PHOTOS TheSecurity Service of Ukraine jointly with the National Police detained a traitor who committed a car arson in Vinnytsia and planned another one in the government building in Kyiv. 2 032 8 Previously in trend: High treason Detention of arsonists

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