Possible BGP hijack

Beginning at 2022-08-19 00:21:23, we detected a possible BGP hijack.

Prefix 139.99.0.0/17, Normally announced by AS16276 OVH, FR

Starting at 2022-08-19 00:21:23, a more specific route (139.99.60.0/23) was announced by ASN 264170.

This was detected by 7 BGPMon peers.

Expected
Start time: 2022-08-19 00:21:23 UTC
Expected prefix: 139.99.0.0/17
Expected ASN: 16276 (OVH, FR)
Event Details
Detected advertisement: 139.99.60.0/23
Detected Origin ASN 264170 (Winet Brasil, BR)
Detected AS Path 268232 17222 4230 264170
Detected by number of BGPMon peers: 7

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