  Security has become paramount in modern software services as more and more
security breaches emerge, impacting final users and organizations alike. Trends
like the Microservice Architecture bring new security challenges related to
communication, system design, development, and operation. The literature
presents a plethora of security-related solutions for microservices-based
systems, but the spread of information difficult practitioners' adoption of
novel security related solutions. In this study, we aim to present a catalogue
and discussion of security solutions based on algorithms, protocols, standards,
or implementations; supporting principles or characteristics of information
security, considering the three possible states of data, according to the
McCumber Cube. Our research follows a Systematic Literature Review,
synthesizing the results with a meta-aggregation process. We identified a total
of 30 primary studies, yielding 75 security solutions for the communication of
microservices.
