Possible BGP hijack

Beginning at 2023-10-03 11:55:57, we detected a possible BGP hijack.

Prefix 141.140.0.0/22, Normally announced by AS7018 ATT-INTERNET4, US

Starting at 2023-10-03 11:55:57, a more specific route (141.140.1.0/24) was announced by ASN 47890.

This was detected by 53 BGPMon peers.

Expected
Start time: 2023-10-03 11:55:57 UTC
Expected prefix: 141.140.0.0/22
Expected ASN: 7018 (ATT-INTERNET4, US)
Event Details
Detected advertisement: 141.140.1.0/24
Detected Origin ASN 47890 (UNMANAGED-DEDICATED-SERVERS, GB)
Detected AS Path 7018 1299 9050 47890
Detected by number of BGPMon peers: 53

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