Possible BGP hijack

Beginning at 2020-09-24 23:32:21, we detected a possible BGP hijack.

Prefix 150.158.192.0/18, Normally announced by AS45090 CNNIC-TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN

Starting at 2020-09-24 23:32:21, a more specific route (150.158.232.0/21) was announced by ASN 28624.

This was detected by 4 BGPMon peers.

Expected
Start time: 2020-09-24 23:32:21 UTC
Expected prefix: 150.158.192.0/18
Expected ASN: 45090 (CNNIC-TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN)
Event Details
Detected advertisement: 150.158.232.0/21
Detected Origin ASN 28624 (PROVEDORA CMA INTERNET LTDA, BR)
Detected AS Path 204092 34019 35280 28624
Detected by number of BGPMon peers: 4

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