Possible BGP hijack

Beginning at 2022-10-21 12:40:20 UTC, we detected a possible BGP hijack.

Prefix 131.72.169.0/24, is normally announced by AS15 Unknown.

But beginning at 2022-10-21 12:40:20, the same prefix (131.72.169.0/24) was also announced by ASN 5.

This was detected by 4 BGPMon peers.

Expected
Start time: 2022-10-21 12:40:20 UTC
Expected prefix: 131.72.169.0/24
Expected ASN: 15 (Unknown)
Event Details
Detected advertisement: 131.72.169.0/24
Detected Origin ASN 5 (SYMBOLICS, US)
Detected AS Path 35266 1299 52320 264628 269918 269918 269918 269918 269918 5
Detected by number of BGPMon peers: 4

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