  Coronavirus disease 2019, i.e. COVID-19 has imposed the public health measure
of keeping social distancing for preventing mass transmission of COVID-19. For
monitoring the social distancing and keeping the trace of transmission, we are
obligated to develop various types of digital surveillance systems, which
include contact tracing systems and drone-based monitoring systems. Due to the
inconvenience of manual labor, traditional contact tracing systems are
gradually replaced by the efficient automated contact tracing applications that
are developed for smartphones. However, the commencement of automated contact
tracing applications introduces the inevitable privacy and security challenges.
Nevertheless, unawareness and/or lack of smartphone usage among mass people
lead to drone-based monitoring systems. These systems also invite unwelcomed
privacy and security challenges. This paper discusses the recently designed and
developed digital surveillance system applications with their protocols
deployed in several countries around the world. Their privacy and security
challenges are discussed as well as analyzed from the viewpoint of privacy
acts. Several recommendations are suggested separately for automated contact
tracing systems and drone-based monitoring systems, which could further be
explored and implemented afterwards to prevent any possible privacy violation
and protect an unsuspecting person from any potential cyber attack.
