Possible BGP hijack

Beginning at 2021-12-10 01:01:16, we detected a possible BGP hijack.

Prefix 172.128.0.0/10, Normally announced by AS10310 YAHOO-1, US

Starting at 2021-12-10 01:01:16, a more specific route (172.168.255.0/24) was announced by ASN 16637.

This was detected by 112 BGPMon peers.

Expected
Start time: 2021-12-10 01:01:16 UTC
Expected prefix: 172.128.0.0/10
Expected ASN: 10310 (YAHOO-1, US)
Event Details
Detected advertisement: 172.168.255.0/24
Detected Origin ASN 16637 (MTNNS-AS, ZA)
Detected AS Path 49463 8218 6461 16637
Detected by number of BGPMon peers: 112

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