@ IJTSRD | Available Online @ www ISSN No: 245 Inte R SCADA for Natio Security Threat Fidelis Chukwujekwu Obod Department of Computer Engineering Akanu Ibiam Federal Polytechnic, Ebonyi State, Nigeria Department of C Science a ABSTRACT The Supervisory Control And Data (SCADA) networks contain com applications that perform key functions essential services and commodities to ci electricity, natural gas, crude oil petroleum products, waste-water tr transportation. This paper looks at architecture and functions to industrial c (ICS) as well its security threats, vuln attacks that could prevent SCADA fr these functions especially in Nigeria finally recommended far-reaching holist the various SCADA’s security challenge Keywords : SCADA, RTU, th vulnerabilities, attack, control, HMI, P instruments, telemetry, PLC, plant, Nige 1.0 Introduction Supervisory control and data acquisiti networks contain computers and app perform key functions in providing ess and commodities (e.g., electricity, natu oil, refined petroleum products such as oil, water, waste. treatment, transportati of a country. SCADA is a type of contr is used to manage and control network and applications that perform these esse w.ijtsrd.com | Volume – 2 | Issue – 2 | Jan-Feb 56 - 6470 | www.ijtsrd.com | Volum ernational Journal of Trend in Sc Research and Development (IJT International Open Access Journ onal Critical Infrastructures: R ts, Vulnerabilities and Counter doeze Technology, Unwana, Ifeyinwa Nkemdili Department of Computer S Anambra State Polytec Anambra State Tochukwu Chijindu Asogwa Computer Engineering Enugu State University of and Technology (ESUT), Enugu, Nigeria a Acquisition mputers and s in providing itizens such as and refined reatment and SCADA, its control system nerabilities and rom delivering a. This paper tic solutions to es. hreats, ICS, PLC, sensors, eria. ion (SCADA) plications that sential services ural gas, crude s gasoline, gas ion) to citizens rol system that k of computers ential services. SCADA is data-gathering ori are used to monitor or to contr transport processes. SCADA performs about fou include - data acquisiti communication, data presentat These four functions are perf of SCADA components such digital or analog) and contro interface with the managed telemetry units (RTUs) are sm deployed in the field at sing RTUs serve as local collecti reports from sensors and de control relays. 3.) SCADA computer consoles that serve for the SCADA system. Maste interface to the system and au managed system in response t communications network c master unit to the RTUs in th remote sites. In Nigeria, SCADA is us (electricity) and oil and gas manage distribution of po petroleum products respective 2018 Page: 974 me - 2 | Issue – 2 cientific TSRD) nal Review of the rmeasures im Obiokafor Science Technology, chnic, Mgbakwu, e, Nigeria f iented. SCADA systems rol chemical, physical or ur functions [1]. They ion, networked data tion and control. formed by several kinds h as 1.) sensors (either ol relays. These directly d system ; 2.) remote mall-computerized units gle sites and locations. ion points for gathering elivering commands to master units are larger as the central processor er units provide a human utomatically regulate the to sensor inputs. 4.) The connects the SCADA he field monitor at your sed majorly in power industry to control and ower (electricity) and ely across the nooks and