Unverified50% confidenceFactExact time
5G网络增加了SUPI加密等安全机制以抵御IMSI捕捉器，但研究者已证明通过降级攻击迫使手机回退到4G/3G仍可绕过这些保护
1
Sources
50%
Confidence
Long-term
Relevance
8/16/2026
First Seen
Sources
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