Possible BGP hijack

Beginning at 2021-04-30 00:03:42, we detected a possible BGP hijack.

Prefix 168.121.244.0/23, Normally announced by AS271483 ALZIRA FRANCISCA DOS CAMPOS FELIPE - ME, BR

Starting at 2021-04-30 00:03:42, a more specific route (168.121.245.0/24) was announced by ASN 270623.

This was detected by 7 BGPMon peers.

Expected
Start time: 2021-04-30 00:03:42 UTC
Expected prefix: 168.121.244.0/23
Expected ASN: 271483 (ALZIRA FRANCISCA DOS CAMPOS FELIPE - ME, BR)
Event Details
Detected advertisement: 168.121.245.0/24
Detected Origin ASN 270623 (DATTAS INTERNET EIRELI-ME, BR)
Detected AS Path 53235 25933 263444 270623
Detected by number of BGPMon peers: 7

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