Myrotvorets founded by George Tuka
Myrotvorets or Mirotvorets (Ukrainian: Миротворець, lit. 'Peacemaker', Ukrainian pronunciation: [mɪrɔ'tvɔrɛt͡sʲ]), is a Ukrainian Kyiv-based website that publishes a running list, and sometimes personal information, of people who are considered by authors of the website to be "enemies of Ukraine", or, as the website itself states, "whose actions have signs of crimes against the national security of Ukraine, peace, human security, and the international law". The website was launched in December 2014 by Ukrainian politician and activist Georgy Tuka. The publishing of personal information on the site has been criticized by human rights organizations.Overview
The site reflects the work of NGO "Myrotvorets centre", led by a person only known with the alias "Roman Zaitsev", former employee of Luhansk Security Service of Ukraine office. In 2016, the Daily Beast reported that the website was curated by the government law-enforcement and intelligence agency Security Service of Ukraine (SBU). In 2022, its founder, George Tuka, denied that the project is managed by the SBU or that it receives state funding.It has been promoted by Anton Herashchenko, a co-founder and later advisor to the Ministry of Internal Affairs of Ukraine . The identity of the staff is secret, and a hidden panel sifts through information, often collated from open-source intelligence, as well as information provided by individuals on a confidential basis.Although it has no official status, the website is regularly consulted at checkpoints to integrate government information systems. According to Tuka, the site has led to the arrest of 1,000 people, since the site's launch, which he claimed included many collaborators and people working for the Federal Security Service that would otherwise not be in any government databases.The slogan of the centre's website and the centre itself is a Latin saying: Pro bono publico (for the public good). 
Myrotvorets Centre began to develop the project in summer 2014, during the war in Donbas after a chance meeting between Tuka and "Roman Zaitsev". The project was launched in December 2014 as part of the work of the volunteer group known as "Narodny Tyl".On 7 May 2016, the website published the personal data of 4,508 journalists and other media members from all over the world who had worked (or had received accreditation to work) on the war in the uncontrolled government territory of Donbas, and therefore were considered by the site to have cooperated with terrorists. There were phone numbers, email addresses, and some countries and cities of residence of Ukrainian and foreign journalists received from the hacked database of Donetsk People's Republic Ministry of State Security; journalists and support staff provided these data to be accredited by the unrecognized Donetsk People's Republic. In response, the Security Service of Ukraine issued a statement that it found no violations of Ukrainian law by Myrotvorets. According to Yulia Gorbunova, senior researcher for Human Rights Watch, the implications this list has for press freedoms is serious, adding that the existence of the list puts lives in danger. The then President of Ukraine, Petro Poroshenko called the leak a "big mistake".