Possible BGP hijack

Beginning at 2017-07-15 11:32:37 UTC, we detected a possible BGP hijack.

Prefix 217.14.144.0/20, is normally announced by AS28731 TRADION AG.

But beginning at 2017-07-15 11:32:37, the same prefix (217.14.144.0/20) was also announced by ASN 50000.

This was detected by 112 BGPMon peers.

Expected
Start time: 2017-07-15 11:32:37 UTC
Expected prefix: 217.14.144.0/20
Expected ASN: 28731 (TRADION AG)
Event Details
Detected advertisement: 217.14.144.0/20
Detected Origin ASN 50000 (RISTANIA-AS)
Detected AS Path 30870 20562 12759 50000
Detected by number of BGPMon peers: 112

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