\documentclass[a4paper,12pt]{article}

\usepackage[ left=2cm, right=2cm
           , top=2.3cm,bottom=2.3cm
           , bindingoffset=0cm ]{geometry}

\usepackage[T2A]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english,russian]{babel}
\usepackage{csquotes}

\usepackage{biblatex}
\usepackage{hyperref}
\usepackage{indentfirst}

\title{Организационное и правовое обеспечение информационной безопасности}
\author{}

\addbibresource{references.bib}

\begin{document}

\maketitle

\include{sections/section1.tex}
\include{sections/section2.tex}
\include{sections/section3.tex}
\include{sections/section4.tex}
\include{sections/section5.tex}
\include{sections/section6.tex}
\include{sections/section7.tex}
\include{sections/section8.tex}
\include{sections/section9.tex}
\include{sections/section10.tex}
\include{sections/section11.tex}
\include{sections/section12.tex}

\end{document}