Possible BGP hijack

Beginning at 2022-04-10 14:03:32 UTC, we detected a possible BGP hijack.

Prefix 187.114.160.0/19, is normally announced by AS18881 TELEFONICA BRASIL S.A, BR.

But beginning at 2022-04-10 14:03:32, the same prefix (187.114.160.0/19) was also announced by ASN 131578.

This was detected by 4 BGPMon peers.

Expected
Start time: 2022-04-10 14:03:32 UTC
Expected prefix: 187.114.160.0/19
Expected ASN: 18881 (TELEFONICA BRASIL S.A, BR)
Event Details
Detected advertisement: 187.114.160.0/19
Detected Origin ASN 131578 (BFSUNET Beijing Foreign Studies University, CN)
Detected AS Path 63956 3491 58453 9808 56048 131578
Detected by number of BGPMon peers: 4

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