Possible BGP hijack

Beginning at 2021-11-26 12:31:46 UTC, we detected a possible BGP hijack.

Prefix 212.102.108.0/24, is normally announced by AS174 COGENT-174, US.

But beginning at 2021-11-26 12:31:46, the same prefix (212.102.108.0/24) was also announced by ASN 12357.

This was detected by 4 BGPMon peers.

Expected
Start time: 2021-11-26 12:31:46 UTC
Expected prefix: 212.102.108.0/24
Expected ASN: 174 (COGENT-174, US)
Event Details
Detected advertisement: 212.102.108.0/24
Detected Origin ASN 12357 (COMUNITEL SPAIN, ES)
Detected AS Path 14613 6939 12430 12357
Detected by number of BGPMon peers: 4

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