Possible BGP hijack

Beginning at 2021-09-25 22:41:09 UTC, we detected a possible BGP hijack.

Prefix 104.171.28.0/24, is normally announced by AS3962 DIRECTNIC-CLUSTER1-TORONTO, KY.

But beginning at 2021-09-25 22:41:09, the same prefix (104.171.28.0/24) was also announced by ASN 136933.

This was detected by 7 BGPMon peers.

Expected
Start time: 2021-09-25 22:41:09 UTC
Expected prefix: 104.171.28.0/24
Expected ASN: 3962 (DIRECTNIC-CLUSTER1-TORONTO, KY)
Event Details
Detected advertisement: 104.171.28.0/24
Detected Origin ASN 136933 (GIGABITBANK-AS-AP Gigabitbank Global, HK)
Detected AS Path 63956 3491 58453 136933 136933
Detected by number of BGPMon peers: 7

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