Possible BGP hijack

Beginning at 2019-07-11 13:16:32, we detected a possible BGP hijack.

Prefix 81.21.224.0/22, Normally announced by AS1257 TELE2, SE

Starting at 2019-07-11 13:16:32, a more specific route (81.21.224.0/24) was announced by ASN 209041.

This was detected by 158 BGPMon peers.

Expected
Start time: 2019-07-11 13:16:32 UTC
Expected prefix: 81.21.224.0/22
Expected ASN: 1257 (TELE2, SE)
Event Details
Detected advertisement: 81.21.224.0/24
Detected Origin ASN 209041 (KARNIT, SE)
Detected AS Path 8612 3257 1299 3301 209041
Detected by number of BGPMon peers: 158

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