Possible BGP hijack

Beginning at 2019-02-02 21:32:14, we detected a possible BGP hijack.

Prefix 181.221.192.0/19, Normally announced by AS28573 CLARO S.A., BR

Starting at 2019-02-02 21:32:14, a more specific route (181.221.216.0/23) was announced by ASN 18978.

This was detected by 190 BGPMon peers.

Expected
Start time: 2019-02-02 21:32:14 UTC
Expected prefix: 181.221.192.0/19
Expected ASN: 28573 (CLARO S.A., BR)
Event Details
Detected advertisement: 181.221.216.0/23
Detected Origin ASN 18978 (ENZUINC-US - Enzu Inc, US)
Detected AS Path 13335 9498 3356 18978
Detected by number of BGPMon peers: 190

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