Beyond PS-LTE: Security Model Design Framework for PPDR Operational Environment

Table 6

Impact categories, the definitions, the count, and the percentage by each threat category.

Impact category	Impact category definition	UE	eNodeB	EPC	IP network
Crucial	The system integrity damage	15 (31.2%)	3 (27.3%)	2 (26.7%)	3 (18.8%)
High	The confidentiality damage (deciphered data leakage)	6 (12.5%)	2 (18.2%)	10 (66.7%)	5 (31.2%)
Medium	The confidentiality damage (system configuration data leakage)	19 (39.6%)	-	1 (6.6%)	6 (37.5%)
Low	The confidentiality damage (ciphered data leakage), the availability damage	8 (16.7%)	7 (63.6%)	2 (20%)	2 (12.5%)