Possible BGP hijack

Beginning at 2021-12-19 05:10:42 UTC, we detected a possible BGP hijack.

Prefix 203.15.176.0/24, is normally announced by AS139322 RIOTINTOIST-AS-APAC Rio Tinto IS&T, AU.

But beginning at 2021-12-19 05:10:42, the same prefix (203.15.176.0/24) was also announced by ASN 5511.

This was detected by 24 BGPMon peers.

Expected
Start time: 2021-12-19 05:10:42 UTC
Expected prefix: 203.15.176.0/24
Expected ASN: 139322 (RIOTINTOIST-AS-APAC Rio Tinto IS&T, AU)
Event Details
Detected advertisement: 203.15.176.0/24
Detected Origin ASN 5511 (OPENTRANSIT, FR)
Detected AS Path 393891 701 5511
Detected by number of BGPMon peers: 24

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