1. “Kaspersky Laboratory”: fraudsters attack Mac users more often. http://www.itsec.ru/newstext.php?news_id=121751
2. Overview of unsanctioned transfers of assets for 2017. The data of the Bank of Russia. http://www.cbr.ru/statichtml/file/14435/survey_transfers_17.pdf
3. Federal law “Regarding national payment system” dated July 27, 2011, No. 161-FZ (18.07.2017 N 176-FZ). http://www.consultant.ru/document/cons_doc_LAW_115625/
4. Mobile Biometric Market Analysis. http://www.acuity-mi.com/ABCMobility_Market_Brief.php
5. Top-10 tendencies of development of biometric technologies and digital identification in 2017. https://marketer.ua/top-10-tendentsij-rozvitku-biometrichnih-tehnologij-i-tsifrovoyi-identifikatsiyi-v-2017-rotsi/