Possible BGP hijack

Beginning at 2022-01-17 20:51:25 UTC, we detected a possible BGP hijack.

Prefix 181.189.84.0/22, is normally announced by AS271395 .

But beginning at 2022-01-17 20:51:25, the same prefix (181.189.84.0/22) was also announced by ASN 270868.

This was detected by 99 BGPMon peers.

Expected
Start time: 2022-01-17 20:51:25 UTC
Expected prefix: 181.189.84.0/22
Expected ASN: 271395 ()
Event Details
Detected advertisement: 181.189.84.0/22
Detected Origin ASN 270868 (IP TELECOM E SISTEMAS LTDA, BR)
Detected AS Path 63956 3491 174 7195 269311 269311 269311 270868
Detected by number of BGPMon peers: 99

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