Possible BGP hijack

Beginning at 2020-03-13 12:13:45 UTC, we detected a possible BGP hijack.

Prefix 2001:678:20::/48, is normally announced by AS1921 NICAT NIC.at head office Salzburg, AT.

But beginning at 2020-03-13 12:13:45, the same prefix (2001:678:20::/48) was also announced by ASN 197495.

This was detected by 2 BGPMon peers.

Expected
Start time: 2020-03-13 12:13:45 UTC
Expected prefix: 2001:678:20::/48
Expected ASN: 1921 (NICAT NIC.at head office Salzburg, AT)
Event Details
Detected advertisement: 2001:678:20::/48
Detected Origin ASN 197495 (LARSENDATA, DK)
Detected AS Path 11170 36213 6939 33597 197495
Detected by number of BGPMon peers: 2

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