Possible BGP hijack

Beginning at 2019-03-01 17:02:47 UTC, we detected a possible BGP hijack.

Prefix 91.238.21.0/24, is normally announced by AS201817 .

But beginning at 2019-03-01 17:02:47, the same prefix (91.238.21.0/24) was also announced by ASN 209561.

This was detected by 161 BGPMon peers.

Expected
Start time: 2019-03-01 17:02:47 UTC
Expected prefix: 91.238.21.0/24
Expected ASN: 201817 ()
Event Details
Detected advertisement: 91.238.21.0/24
Detected Origin ASN 209561 (DVGLOBALBV, NL)
Detected AS Path 36692 3257 174 209561
Detected by number of BGPMon peers: 161

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