Possible BGP hijack

Beginning at 2022-04-14 17:20:27 UTC, we detected a possible BGP hijack.

Prefix 91.240.118.0/24, is normally announced by AS57523 CHANGWAY-AS, HK.

But beginning at 2022-04-14 17:20:27, the same prefix (91.240.118.0/24) was also announced by ASN 49453.

This was detected by 90 BGPMon peers.

Expected
Start time: 2022-04-14 17:20:27 UTC
Expected prefix: 91.240.118.0/24
Expected ASN: 57523 (CHANGWAY-AS, HK)
Event Details
Detected advertisement: 91.240.118.0/24
Detected Origin ASN 49453 (GLOBALLAYER, NL)
Detected AS Path 49463 49453
Detected by number of BGPMon peers: 90

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