Possible BGP hijack

Beginning at 2021-02-27 02:06:27 UTC, we detected a possible BGP hijack.

Prefix 2a02:21d0::/32, is normally announced by AS49677 MAEHDROS-AS, BE.

But beginning at 2021-02-27 02:06:27, the same prefix (2a02:21d0::/32) was also announced by ASN 269684.

This was detected by 3 BGPMon peers.

Expected
Start time: 2021-02-27 02:06:27 UTC
Expected prefix: 2a02:21d0::/32
Expected ASN: 49677 (MAEHDROS-AS, BE)
Event Details
Detected advertisement: 2a02:21d0::/32
Detected Origin ASN 269684 (LANFIBRA TELECOMUNICACOES - EIRELI, BR)
Detected AS Path 52694 266539 269684
Detected by number of BGPMon peers: 3

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