Possible BGP hijack

Beginning at 2020-03-11 13:55:58 UTC, we detected a possible BGP hijack.

Prefix 185.28.194.0/24, is normally announced by AS60592 GRANSY Gransy s.r.o. http://gransy.com, CZ.

But beginning at 2020-03-11 13:55:58, the same prefix (185.28.194.0/24) was also announced by ASN 59256.

This was detected by 30 BGPMon peers.

Expected
Start time: 2020-03-11 13:55:58 UTC
Expected prefix: 185.28.194.0/24
Expected ASN: 60592 (GRANSY Gransy s.r.o. http://gransy.com, CZ)
Event Details
Detected advertisement: 185.28.194.0/24
Detected Origin ASN 59256 (ANSASERVERS Aus Net Servers Australia Pty Ltd, AU)
Detected AS Path 4826 134090 134090 134090 134090 59256 59256
Detected by number of BGPMon peers: 30

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