Possible BGP hijack

Beginning at 2022-12-12 00:30:40, we detected a possible BGP hijack.

Prefix 87.239.120.0/21, Normally announced by AS39662 FI-FICORA-AS, FI

Starting at 2022-12-12 00:30:40, a more specific route (87.239.122.0/24) was announced by ASN 55002.

This was detected by 74 BGPMon peers.

Expected
Start time: 2022-12-12 00:30:40 UTC
Expected prefix: 87.239.120.0/21
Expected ASN: 39662 (FI-FICORA-AS, FI)
Event Details
Detected advertisement: 87.239.122.0/24
Detected Origin ASN 55002 (DEFENSE-NET, US)
Detected AS Path 63774 35280 55002
Detected by number of BGPMon peers: 74

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