Possible BGP hijack

Beginning at 2022-11-28 17:29:26, we detected a possible BGP hijack.

Prefix 149.78.0.0/20, Normally announced by AS263009 FORTE TELECOM LTDA., BR

Starting at 2022-11-28 17:29:26, a more specific route (149.78.0.0/24) was announced by ASN 269909.

This was detected by 66 BGPMon peers.

Expected
Start time: 2022-11-28 17:29:26 UTC
Expected prefix: 149.78.0.0/20
Expected ASN: 263009 (FORTE TELECOM LTDA., BR)
Event Details
Detected advertisement: 149.78.0.0/24
Detected Origin ASN 269909 (Comunicaciones Valles Calchaquies S.R.L., AR)
Detected AS Path 3597 11058 7303 269909 269909 269909
Detected by number of BGPMon peers: 66

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