Possible BGP hijack

Beginning at 2023-05-04 17:24:21 UTC, we detected a possible BGP hijack.

Prefix 23.26.42.0/24, is normally announced by AS137409 GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU.

But beginning at 2023-05-04 17:24:21, the same prefix (23.26.42.0/24) was also announced by ASN 207279.

This was detected by 3 BGPMon peers.

Expected
Start time: 2023-05-04 17:24:21 UTC
Expected prefix: 23.26.42.0/24
Expected ASN: 137409 (GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU)
Event Details
Detected advertisement: 23.26.42.0/24
Detected Origin ASN 207279 ()
Detected AS Path 49673 12389 9121 61135 207279
Detected by number of BGPMon peers: 3

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