Possible BGP hijack

Beginning at 2022-08-18 08:12:43, we detected a possible BGP hijack.

Prefix 172.100.0.0/15, Normally announced by AS11351 TWC-11351-NORTHEAST, US

Starting at 2022-08-18 08:12:43, a more specific route (172.101.0.0/24) was announced by ASN 266590.

This was detected by 3 BGPMon peers.

Expected
Start time: 2022-08-18 08:12:43 UTC
Expected prefix: 172.100.0.0/15
Expected ASN: 11351 (TWC-11351-NORTHEAST, US)
Event Details
Detected advertisement: 172.101.0.0/24
Detected Origin ASN 266590 (Digital Candeias, BR)
Detected AS Path 263287 262868 52872 266590
Detected by number of BGPMon peers: 3

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