Possible BGP hijack

Beginning at 2021-09-11 05:40:25, we detected a possible BGP hijack.

Prefix 2001:200::/32, Normally announced by AS2500 WIDE-BB WIDE Project, JP

Starting at 2021-09-11 05:40:25, a more specific route (2001:200:e000:853::/64) was announced by ASN 11537.

This was detected by 2 BGPMon peers.

Start time: 2021-09-11 05:40:25 UTC
Expected prefix: 2001:200::/32
Expected ASN: 2500 (WIDE-BB WIDE Project, JP)
Event Details
Detected advertisement: 2001:200:e000:853::/64
Detected Origin ASN 11537 (INTERNET2-RESEARCH-EDU, US)
Detected AS Path 11039 4901 11537
Detected by number of BGPMon peers: 2

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