Possible BGP hijack

Beginning at 2023-09-02 14:10:46 UTC, we detected a possible BGP hijack.

Prefix 138.59.224.0/24, is normally announced by AS270052 ARANDA CARDOZO LIDER RAMON, PY.

But beginning at 2023-09-02 14:10:46, the same prefix (138.59.224.0/24) was also announced by ASN 270735.

This was detected by 15 BGPMon peers.

Expected
Start time: 2023-09-02 14:10:46 UTC
Expected prefix: 138.59.224.0/24
Expected ASN: 270052 (ARANDA CARDOZO LIDER RAMON, PY)
Event Details
Detected advertisement: 138.59.224.0/24
Detected Origin ASN 270735 (COMPUTIZE NETWORK TELECOMUNICACOES LTDA, BR)
Detected AS Path 4270 3549 53013 53013 53013 53013 270735 270735
Detected by number of BGPMon peers: 15

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