Possible BGP hijack

Beginning at 2024-01-04 17:35:50 UTC, we detected a possible BGP hijack.

Prefix 207.248.64.0/24, is normally announced by AS55002 DEFENSE-NET, US.

But beginning at 2024-01-04 17:35:50, the same prefix (207.248.64.0/24) was also announced by ASN 28511.

This was detected by 4 BGPMon peers.

Expected
Start time: 2024-01-04 17:35:50 UTC
Expected prefix: 207.248.64.0/24
Expected ASN: 55002 (DEFENSE-NET, US)
Event Details
Detected advertisement: 207.248.64.0/24
Detected Origin ASN 28511 (Unknown)
Detected AS Path 2711 174 28511
Detected by number of BGPMon peers: 4

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