Possible BGP hijack

Beginning at 2022-10-31 14:24:16, we detected a possible BGP hijack.

Prefix 143.0.240.0/22, Normally announced by AS271217 Nova Info Internet e Telecomunicacoes LTDA, BR

Starting at 2022-10-31 14:24:16, a more specific route (143.0.241.0/24) was announced by ASN 272533.

This was detected by 75 BGPMon peers.

Expected
Start time: 2022-10-31 14:24:16 UTC
Expected prefix: 143.0.240.0/22
Expected ASN: 271217 (Nova Info Internet e Telecomunicacoes LTDA, BR)
Event Details
Detected advertisement: 143.0.241.0/24
Detected Origin ASN 272533 ()
Detected AS Path 32563 6461 1299 52320 11432 11432 11432 272533 272533 272533 272533 272533 272533 272533
Detected by number of BGPMon peers: 75

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