Possible BGP hijack

Beginning at 2020-07-21 09:54:08 UTC, we detected a possible BGP hijack.

Prefix 81.24.87.0/24, is normally announced by AS39434 OPTIKA-TELECOM, RU.

But beginning at 2020-07-21 09:54:08, the same prefix (81.24.87.0/24) was also announced by ASN 203104.

This was detected by 55 BGPMon peers.

Expected
Start time: 2020-07-21 09:54:08 UTC
Expected prefix: 81.24.87.0/24
Expected ASN: 39434 (OPTIKA-TELECOM, RU)
Event Details
Detected advertisement: 81.24.87.0/24
Detected Origin ASN 203104 (HIGHTECH, RU)
Detected AS Path 63956 8359 8359 8359 56634 203104
Detected by number of BGPMon peers: 55

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