Possible BGP hijack

Beginning at 2019-05-30 12:01:05 UTC, we detected a possible BGP hijack.

Prefix 102.67.56.0/22, is normally announced by AS5 SYMBOLICS - Symbolics, Inc., US.

But beginning at 2019-05-30 12:01:05, the same prefix (102.67.56.0/22) was also announced by ASN 10.

This was detected by 143 BGPMon peers.

Expected
Start time: 2019-05-30 12:01:05 UTC
Expected prefix: 102.67.56.0/22
Expected ASN: 5 (SYMBOLICS - Symbolics, Inc., US)
Event Details
Detected advertisement: 102.67.56.0/22
Detected Origin ASN 10 (CSNET-EXT-AS - CSNET Coordination and Information Center (CSNET-CIC), US)
Detected AS Path 553 1299 37271 328474 328474 328474 328474 328474 328474 328474 328474 328474 328474 10
Detected by number of BGPMon peers: 143

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