Possible BGP hijack

Beginning at 2021-09-14 01:17:42, we detected a possible BGP hijack.

Prefix 20.0.0.0/11, Normally announced by AS8075 MICROSOFT-CORP-MSN-AS-BLOCK, US

Starting at 2021-09-14 01:17:42, a more specific route (20.10.10.0/24) was announced by ASN 43727.

This was detected by 25 BGPMon peers.

Expected
Start time: 2021-09-14 01:17:42 UTC
Expected prefix: 20.0.0.0/11
Expected ASN: 8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US)
Event Details
Detected advertisement: 20.10.10.0/24
Detected Origin ASN 43727 (KVANT-TELECOM, RU)
Detected AS Path 38987 20804 41095 43727
Detected by number of BGPMon peers: 25

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