Possible BGP hijack

Beginning at 2017-03-26 16:26:14, we detected a possible BGP hijack.

Prefix 170.66.0.0/16, Normally announced by AS11993 BANCO DO BRASIL S.A.

Starting at 2017-03-26 16:26:14, a more specific route (170.66.11.0/24) was announced by ASN 266409.

This was detected by 44 BGPMon peers.

Expected
Start time: 2017-03-26 16:26:14 UTC
Expected prefix: 170.66.0.0/16
Expected ASN: 11993 (BANCO DO BRASIL S.A.)
Event Details
Detected advertisement: 170.66.11.0/24
Detected Origin ASN 266409 (SECW TELECOM)
Detected AS Path 53070 266409
Detected by number of BGPMon peers: 44

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