Possible BGP hijack

Beginning at 2021-06-04 07:25:25, we detected a possible BGP hijack.

Prefix 154.24.0.0/13, Normally announced by AS174 COGENT-174, US

Starting at 2021-06-04 07:25:25, a more specific route (154.31.26.0/24) was announced by ASN 136933.

This was detected by 124 BGPMon peers.

Expected
Start time: 2021-06-04 07:25:25 UTC
Expected prefix: 154.24.0.0/13
Expected ASN: 174 (COGENT-174, US)
Event Details
Detected advertisement: 154.31.26.0/24
Detected Origin ASN 136933 (GIGABITBANK-AS-AP Gigabitbank Global, HK)
Detected AS Path 268232 17222 2914 136933 136933 136933 136933
Detected by number of BGPMon peers: 124

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