Possible BGP hijack

Beginning at 2021-03-01 08:56:17 UTC, we detected a possible BGP hijack.

Prefix 2a04:340::/29, is normally announced by AS200828 THOSTING-AS, CZ.

But beginning at 2021-03-01 08:56:17, the same prefix (2a04:340::/29) was also announced by ASN 269684.

This was detected by 5 BGPMon peers.

Expected
Start time: 2021-03-01 08:56:17 UTC
Expected prefix: 2a04:340::/29
Expected ASN: 200828 (THOSTING-AS, CZ)
Event Details
Detected advertisement: 2a04:340::/29
Detected Origin ASN 269684 (LANFIBRA TELECOMUNICACOES - EIRELI, BR)
Detected AS Path 52694 266539 269684
Detected by number of BGPMon peers: 5

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