Yanina Kornienko is a Ukrainian investigative journalist working for Slidstvo.Info. After the start of the full-scale invasion of Russia into Ukraine, she began investigating war crimes in Ukraine, where she is working on stories about the situation in occupied cities, including the deportation of children and cases of kidnapped journalists, and collecting evidence of genocide. Prior, she worked as a researcher at Investigative Dashboard, a service created by the international investigative network OCCRP (Organized Crime and Corruption Reporting Project). As part of the ID team, she was involved in researching companies and protected assets in various jurisdictions worldwide. Kornienko was also part of the OCCRP team that conducted a series of cross-border investigations into the procurement of protective masks against Covid-19. In 2020 and 2021, she was among the co-authors of two cross-border investigations into the causes of the Beirut port explosion, carried out with colleagues from OCCRP and Al Jadeed. In 2022, she was a co-author of the Suisse Secrets international project, where she, along with colleagues from 13 countries, investigated the leak of information about the accounts of the Swiss bank Credit Suisse.