Possible BGP hijack

Beginning at 2020-03-26 02:43:10, we detected a possible BGP hijack.

Prefix 200.186.0.0/16, Normally announced by AS3549 LVLT-3549, US

Starting at 2020-03-26 02:43:10, a more specific route (200.186.244.0/24) was announced by ASN 15256.

This was detected by 150 BGPMon peers.

Expected
Start time: 2020-03-26 02:43:10 UTC
Expected prefix: 200.186.0.0/16
Expected ASN: 3549 (LVLT-3549, US)
Event Details
Detected advertisement: 200.186.244.0/24
Detected Origin ASN 15256 (Itau Unibanco S.A., BR)
Detected AS Path 36692 2914 3356 15256
Detected by number of BGPMon peers: 150

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