The growing interest in researching the topic of defining the essence of social engineering as a threat to economic security is due to the increasing complexity of the information and technical components of the life of modern society. At the same time, with the complication of all processes existing in society, information threats are becoming more complex and increasing. Information threats arising from the outside have the ability to penetrate the most protected systems of organizations of various levels, realizing the goals of the subjects of hacking. The situation is getting more complicated every year also because, as a rule, the goals of such incursions into the sphere of information security are extremely destructive. In the course of the study, we analyzed six methods of social engineering combining fraudulent schemes of different levels of complexity, which are currently used in a destructive manner and negatively affect economic security. The scale of information leaks in the financial sector in 2019–2020 is illustrated by data type, intent, culprit, and type of incident. We found that social engineering methods are adaptive, they change in accordance with fluid environmental conditions, and therefore, security personnel need to stay up-to-date on current methods and schemes to prevent hacking activities.

The article shows the data on the species peculiarities of contemporary dendroflora of the Mongolian capital, Ulaanbaatar. The overall 48 species belonging to 14 families: Rosaceae Juss. (13), Pinaceae Lindl. (5), Elaeagnaceae Juss. (5), Caprifoliaceae Juss. (5), Salicaceae Mirb. (4), Saxifragaceae DC. (4), Cupressaceae Bartl. (3), Leguminosae Juss. (3), Aceraceae Lindl. (1), Betulaceae S.F.Gray (1), Ulmaceae Mirb. (1), Berberidaceae Juss. (1), Oleaceae Lindl. (1), Cornaceae Link. (1) are described. Environmental factors influencing life state of trees are considered. Environmental peculiarities of introducents are characterized. Conclusions about the necessity of improving approaches to plant stand analysis of derelict lands are drawn. It is suggested to develop a data base in the context of studies of adventive and synathropic flora of Russia and neighbouring countries at the site of the Resource Centre of Russian-Mongolian Cooperation in the field of education, science, youth policy and ecology at Baikal State University.