Possible BGP hijack

Beginning at 2021-11-28 17:13:29 UTC, we detected a possible BGP hijack.

Prefix 88.85.236.0/24, is normally announced by AS29684 NOURNET-ASN, SA.

But beginning at 2021-11-28 17:13:29, the same prefix (88.85.236.0/24) was also announced by ASN 6453.

This was detected by 70 BGPMon peers.

Expected
Start time: 2021-11-28 17:13:29 UTC
Expected prefix: 88.85.236.0/24
Expected ASN: 29684 (NOURNET-ASN, SA)
Event Details
Detected advertisement: 88.85.236.0/24
Detected Origin ASN 6453 (AS6453, US)
Detected AS Path 199981 20804 2914 6453
Detected by number of BGPMon peers: 70

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