Possible BGP hijack

Beginning at 2022-05-02 22:55:08 UTC, we detected a possible BGP hijack.

Prefix 187.63.239.0/24, is normally announced by AS271436 .

But beginning at 2022-05-02 22:55:08, the same prefix (187.63.239.0/24) was also announced by ASN 263661.

This was detected by 103 BGPMon peers.

Expected
Start time: 2022-05-02 22:55:08 UTC
Expected prefix: 187.63.239.0/24
Expected ASN: 271436 ()
Event Details
Detected advertisement: 187.63.239.0/24
Detected Origin ASN 263661 (BRASIL DIGITAL SERVICOS DE INFORMATICA E COMERCIO, BR)
Detected AS Path 49134 53356 6939 1299 6453 4230 263661
Detected by number of BGPMon peers: 103

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