Answer:
deploy a NIDS
Explanation:
The best thing to do in this scenario would be to deploy a NIDS which stands for network intrusion detection system. This system basically warns you when it detects any harmful data trying to bypass the perimeter network in which it has been deployed. This also refers to any form of cyber attack such as malware, DoS attacks, spyware, etc. Anything that may cause any damage or perform unwanted actions on the system are detected and raises an alarm.
