Development of Network Security Based on the Neural Network PSD Algorithm

Table 3

BPA value corresponding to the network security assessment level.

Security level	Situation BPA value
Class I (safety)	(0.8–1.0]
Class II (relatively safe)	(0.45–0.8]
Class III (basic safety)	(0–0.45]
Class IV (less safe)	(0.55–1.0]
Class V (unsafe)	(0–0.55]