Possible BGP hijack

Beginning at 2018-11-24 16:38:00 UTC, we detected a possible BGP hijack.

Prefix 217.21.139.0/24, is normally announced by AS48768 Gtech Sweden Interactive Ab.

But beginning at 2018-11-24 16:38:00, the same prefix (217.21.139.0/24) was also announced by ASN 198949.

This was detected by 96 BGPMon peers.

Expected
Start time: 2018-11-24 16:38:00 UTC
Expected prefix: 217.21.139.0/24
Expected ASN: 48768 (Gtech Sweden Interactive Ab)
Event Details
Detected advertisement: 217.21.139.0/24
Detected Origin ASN 198949 (Securitydam Ltd)
Detected AS Path 50048 3216 1273 3257 198949
Detected by number of BGPMon peers: 96

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