Possible BGP hijack

Beginning at 2021-02-27 01:17:07, we detected a possible BGP hijack.

Prefix 2402:800:6000::/36, Normally announced by AS7552 VIETEL-AS-AP Viettel Group, VN

Starting at 2021-02-27 01:17:07, a more specific route (2402:800:610a::/48) was announced by ASN 269684.

This was detected by 3 BGPMon peers.

Expected
Start time: 2021-02-27 01:17:07 UTC
Expected prefix: 2402:800:6000::/36
Expected ASN: 7552 (VIETEL-AS-AP Viettel Group, VN)
Event Details
Detected advertisement: 2402:800:610a::/48
Detected Origin ASN 269684 (LANFIBRA TELECOMUNICACOES - EIRELI, BR)
Detected AS Path 53131 266539 269684
Detected by number of BGPMon peers: 3

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