Possible BGP hijack

Beginning at 2018-11-26 22:13:07 UTC, we detected a possible BGP hijack.

Prefix 91.239.147.0/24, is normally announced by AS198812 Sapient Security Limited.

But beginning at 2018-11-26 22:13:07, the same prefix (91.239.147.0/24) was also announced by ASN 209975.

This was detected by 179 BGPMon peers.

Expected
Start time: 2018-11-26 22:13:07 UTC
Expected prefix: 91.239.147.0/24
Expected ASN: 198812 (Sapient Security Limited)
Event Details
Detected advertisement: 91.239.147.0/24
Detected Origin ASN 209975 (INCA-AS, IE)
Detected AS Path 394255 6327 3257 207044 209975
Detected by number of BGPMon peers: 179

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