1. https://btcmanager.com/john-mcafee-crypto-cuban-government/
2. https://bankstoday.net/last-news/16-17-oktyabrya-v-moskve-sostoitsya-blockchain-life-2019
3. https://www.kaspersky.ru/blog/sodin-msp-ransomware/23051/
4. https://www.cryptoninjas.net/2019/07/08/kucoin-crypto-derivatives-platform-kumex-now-live/
5. https://www.cryptoglobe.com/latest/2019/07/ecb-s-coeure-warns-regulators-to-wake-up-to-the-dangers-of-libra/