Possible BGP hijack

Beginning at 2021-01-18 15:02:54 UTC, we detected a possible BGP hijack.

Prefix 170.84.110.0/24, is normally announced by AS263248 GCI SERVICE PROVIDER S.A., CR.

But beginning at 2021-01-18 15:02:54, the same prefix (170.84.110.0/24) was also announced by ASN 52721.

This was detected by 28 BGPMon peers.

Expected
Start time: 2021-01-18 15:02:54 UTC
Expected prefix: 170.84.110.0/24
Expected ASN: 263248 (GCI SERVICE PROVIDER S.A., CR)
Event Details
Detected advertisement: 170.84.110.0/24
Detected Origin ASN 52721 (TOLEDO FIBRA TELECOMUNICACAO LTDA, BR)
Detected AS Path 15296 6327 4230 52721
Detected by number of BGPMon peers: 28

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