Possible BGP hijack

Beginning at 2021-02-28 06:55:12 UTC, we detected a possible BGP hijack.

Prefix 2a0a:a5c0:28::/46, is normally announced by AS22787 ARRIS, US.

But beginning at 2021-02-28 06:55:12, the same prefix (2a0a:a5c0:28::/46) was also announced by ASN 269684.

This was detected by 3 BGPMon peers.

Expected
Start time: 2021-02-28 06:55:12 UTC
Expected prefix: 2a0a:a5c0:28::/46
Expected ASN: 22787 (ARRIS, US)
Event Details
Detected advertisement: 2a0a:a5c0:28::/46
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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