Possible BGP hijack

Beginning at 2023-04-20 17:27:56 UTC, we detected a possible BGP hijack.

Prefix 213.181.218.0/24, is normally announced by AS7018 ATT-INTERNET4, US.

But beginning at 2023-04-20 17:27:56, the same prefix (213.181.218.0/24) was also announced by ASN 47169.

This was detected by 2 BGPMon peers.

Expected
Start time: 2023-04-20 17:27:56 UTC
Expected prefix: 213.181.218.0/24
Expected ASN: 7018 (ATT-INTERNET4, US)
Event Details
Detected advertisement: 213.181.218.0/24
Detected Origin ASN 47169 (HPC-MVM-AS, HU)
Detected AS Path 19704 33604 6939 6663 47169 47169 47169 47169 47169 47169 47169 47169
Detected by number of BGPMon peers: 2

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