Possible BGP hijack

Beginning at 2021-12-25 15:23:22 UTC, we detected a possible BGP hijack.

Prefix 91.92.91.0/24, is normally announced by AS39251 NETGUARD, BG.

But beginning at 2021-12-25 15:23:22, the same prefix (91.92.91.0/24) was also announced by ASN 212442.

This was detected by 16 BGPMon peers.

Expected
Start time: 2021-12-25 15:23:22 UTC
Expected prefix: 91.92.91.0/24
Expected ASN: 39251 (NETGUARD, BG)
Event Details
Detected advertisement: 91.92.91.0/24
Detected Origin ASN 212442 (SPEEDNET-AS, GR)
Detected AS Path 42473 47147 57463 212442
Detected by number of BGPMon peers: 16

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