Possible BGP hijack

Beginning at 2018-10-18 01:40:00 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS10 CSNET-EXT-AS - CSNET Coordination and Information Center (CSNET-CIC), US.

But beginning at 2018-10-18 01:40:00, the same prefix ( was also announced by ASN 5.

This was detected by 18 BGPMon peers.

Start time: 2018-10-18 01:40:00 UTC
Expected prefix:
Expected ASN: 10 (CSNET-EXT-AS - CSNET Coordination and Information Center (CSNET-CIC), US)
Event Details
Detected advertisement:
Detected Origin ASN 5 (SYMBOLICS - Symbolics, Inc., US)
Detected AS Path 11071 3356 3549 263558 5
Detected by number of BGPMon peers: 18

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