In Poland, 16 people who were part of a spy network were charged. It could have worked for Russian special services, stated the Warsaw Prosecutor's Office, according to Sky News. According to the agency,

Russia has intensified its network of “sleeper” spies in Ukraine over the past two months, Secretary of the National Security and Defense Council Oleksiy Danilov, said in an interview with the UK newspaper the Times on Nov.

Top spy Kyrylo Budanov has escaped a dozen assassination attempts by Vladmir Putin's forces. The most recent poisoned his wife.

If confirmed as deliberate, the poisoning would represent the most serious targeting of a high-profile Ukrainian leadership figure's family member during the Russia-Ukraine war

The wife of Ukraine's intelligence chief has been diagnosed with heavy metals poisoning in hospital. Marianna Budanova is the wife of Ukrainian military leader Kyrylo Budanov. A spokesperson for Ukraine’s GUR military intelligence agency,

Marianna Budanova is the wife of Kyrylo Budanov, who heads Ukrainian military intelligence agency GUR, which has been prominently involved in clandestine operations against Russian forces since Moscow’s February 2022 invasion of Ukraine.

The wife of Ukrainian spy chief Kyrylo Budanov was hospitalized after she was poisoned with heavy medals, according to Ukrainian officials. The incident created speculation that Russia could be behind the attack targeting Ukraine's top officials.