https://www.radiosvoboda.org/a/28910403.html
http://www.kasparov.ru/material.php?id=5A2E6D21F2C8B
http://www.kasparov.ru/material.php?id=5A2E71F54706A
Thousands of British businesses have paid ransoms to Russian hackers who are launching hundreds of attacks every day and demanding up to £100,000 to release fil
https://www.thetimes.co.uk/edition/news/russian-hackers-hold-uk-to-ransom-r960c00fz
https://www.inopressa.ru/article/07Dec2017/times/cyber03.html
https://www.radiosvoboda.org/a/28901521.html
https://www.rbc.ru/newspaper/2017/12/06/5a26c4cb9a794747586d29c3
https://www.gazeta.ru/comments/column/melamed/11031416.shtml
https://www.kommersant.ru/doc/3487659