Here is a reference I am using as following
\bibitem{dhanl}
Y.~Dhanalakshmi, I.~R. Babu, “intrusion detection using data mining along fuzzy logic and genetic algorithms,” international journal of computer science & security, vol. 8, no.2, pp. 27–32, 2008.
this is in a file EUSFLAT2019_template.bbl
this is the corresponding entry in BIBeusflat2019.bib
@article{dhanl,
author={Y. Dhanalakshmi, and I. Ramesh Babu,},
title={“Intrusion detection using data
mining along fuzzy logic and genetic algorithms,” International Journal
of Computer Science & Security, vol. 8, no.2, pp. 27–32, 2008}
}
I am doing all this in a template downloaded from here https://www.overleaf.com/latex/templates/eusflat-2019-template/jmqvcrhkqhgx the error I am getting is
Misplaced alignment tab character &. ...nternational journal of computer science &
what is the problem in above? I am using TeXStudio here is how it looks like

Science \& Security– Phelype Oleinik Mar 16 '20 at 14:18