Possible BGP hijack

Beginning at 2019-11-22 19:05:25 UTC, we detected a possible BGP hijack.

Prefix 83.143.56.0/21, is normally announced by AS16086 DNA, FI.

But beginning at 2019-11-22 19:05:25, the same prefix (83.143.56.0/21) was also announced by ASN 208281.

This was detected by 25 BGPMon peers.

Expected
Start time: 2019-11-22 19:05:25 UTC
Expected prefix: 83.143.56.0/21
Expected ASN: 16086 (DNA, FI)
Event Details
Detected advertisement: 83.143.56.0/21
Detected Origin ASN 208281 (DNARY, FI)
Detected AS Path 29396 6667 16302 208281
Detected by number of BGPMon peers: 25

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