A method performed by a cybersecurity system includes monitoring multiple network functions (NFs) of a service-based architecture (SBA) of a 5G network. The NFs are communicatively interconnected over an HTTP/2 interface. The cybersecurity system detects potentially malicious network traffic communicated over the HTTP/2 interface, identifies a NFs or associated services that are susceptible to a cyberattack based on the potentially malicious network traffic and deploys resources to secure the NFs or associated services. In one example, the resources are prioritized for a most frequently used (MFU) or most recently used (MRU) NF or associated service.