Possible BGP hijack

Beginning at 2020-06-27 00:35:06 UTC, we detected a possible BGP hijack.

Prefix 216.171.184.0/21, is normally announced by AS7828 DRMSCPASN, US.

But beginning at 2020-06-27 00:35:06, the same prefix (216.171.184.0/21) was also announced by ASN 45753.

This was detected by 3 BGPMon peers.

Expected
Start time: 2020-06-27 00:35:06 UTC
Expected prefix: 216.171.184.0/21
Expected ASN: 7828 (DRMSCPASN, US)
Event Details
Detected advertisement: 216.171.184.0/21
Detected Origin ASN 45753 (NETSEC-HK NETSEC, HK)
Detected AS Path 18356 9931 4651 3491 58453 45753
Detected by number of BGPMon peers: 3

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