Possible BGP hijack

Beginning at 2023-05-25 07:04:54, we detected a possible BGP hijack.

Prefix, Normally announced by AS49837 SYNTHES, CH

Starting at 2023-05-25 07:04:54, a more specific route ( was announced by ASN 8220.

This was detected by 38 BGPMon peers.

Start time: 2023-05-25 07:04:54 UTC
Expected prefix:
Expected ASN: 49837 (SYNTHES, CH)
Event Details
Detected advertisement:
Detected Origin ASN 8220 (COLT COLT Technology Services Group Limited, GB)
Detected AS Path 63956 8220
Detected by number of BGPMon peers: 38

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