Possible BGP hijack

Beginning at 2021-11-17 13:32:23 UTC, we detected a possible BGP hijack.

Prefix 203.217.163.0/24, is normally announced by AS135150 HILLSIDE-NEW-MEDIA-AS-AP Hillside Australia New Media Pty Ltd, AU.

But beginning at 2021-11-17 13:32:23, the same prefix (203.217.163.0/24) was also announced by ASN 3.

This was detected by 46 BGPMon peers.

Expected
Start time: 2021-11-17 13:32:23 UTC
Expected prefix: 203.217.163.0/24
Expected ASN: 135150 (HILLSIDE-NEW-MEDIA-AS-AP Hillside Australia New Media Pty Ltd, AU)
Event Details
Detected advertisement: 203.217.163.0/24
Detected Origin ASN 3 (MIT-GATEWAYS, US)
Detected AS Path 20205 6939 3356 58431 3
Detected by number of BGPMon peers: 46

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