Possible BGP hijack

Beginning at 2023-09-04 23:08:53 UTC, we detected a possible BGP hijack.

Prefix 170.254.217.0/24, is normally announced by AS264770 Leonir Remussi KDMNET, PY.

But beginning at 2023-09-04 23:08:53, the same prefix (170.254.217.0/24) was also announced by ASN 270735.

This was detected by 15 BGPMon peers.

Expected
Start time: 2023-09-04 23:08:53 UTC
Expected prefix: 170.254.217.0/24
Expected ASN: 264770 (Leonir Remussi KDMNET, PY)
Event Details
Detected advertisement: 170.254.217.0/24
Detected Origin ASN 270735 (COMPUTIZE NETWORK TELECOMUNICACOES LTDA, BR)
Detected AS Path 63956 6762 53013 270735 270735
Detected by number of BGPMon peers: 15

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