Possible BGP hijack

Beginning at 2023-09-26 05:35:42 UTC, we detected a possible BGP hijack.

Prefix 190.123.21.0/24, is normally announced by AS52391 Curacao Technology Exchange N.V CTEX, CW.

But beginning at 2023-09-26 05:35:42, the same prefix (190.123.21.0/24) was also announced by ASN 40786.

This was detected by 18 BGPMon peers.

Expected
Start time: 2023-09-26 05:35:42 UTC
Expected prefix: 190.123.21.0/24
Expected ASN: 52391 (Curacao Technology Exchange N.V CTEX, CW)
Event Details
Detected advertisement: 190.123.21.0/24
Detected Origin ASN 40786 (Unknown)
Detected AS Path 35710 3320 6461 33576 40786
Detected by number of BGPMon peers: 18

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