  Internet technology has proven to be a vital contributor to many cutting-edge
innovations that have given humans access to interact virtually with objects.
Until now, numerous virtual systems had been developed for digital
transformation to enable access to thousands of services and applications that
range from virtual gaming to social networks. However, the majority of these
systems lack to maintain consistency during interconnectivity and
communication. To explore this discussion, in the recent past a new term,
Metaverse has been introduced, which is the combination of meta and universe
that describes a shared virtual environment, where a number of technologies,
such as 4th and 5th generation technologies, VR, ML algorithms etc., work
collectively to support each other for the sake of one objective, which is the
virtual accessibility of objects via one network platform. With the
development, integration, and virtualization of technologies, a lot of
improvement in daily life applications is expected, but at the same time, there
is a big challenge for the research community to secure this platform from
external and external threats, because this technology is exposed to many
cybersecurity attacks. Hence, it is imperative to systematically review and
understand the taxonomy, applications, open security challenges, and future
research directions of the emerging Metaverse technologies. In this paper, we
have made useful efforts to present a comprehensive survey regarding Metaverse
technology by taking into account the aforesaid parameters. Following this, in
the initial phase, we explored the future of Metaverse in the presence of 4th
and 5th generation technologies. Thereafter, we discussed the possible attacks
to set a preface for the open security challenges. Based on that, we suggested
potential research directions that could be beneficial to address these
challenges cost-effectively.
