Possible BGP hijack

Beginning at 2023-03-01 21:06:34 UTC, we detected a possible BGP hijack.

Prefix 2403:b00::/48, is normally announced by AS58521 GARENA-SG Garena Online Pte Ltd, SG.

But beginning at 2023-03-01 21:06:34, the same prefix (2403:b00::/48) was also announced by ASN 269000.

This was detected by 3 BGPMon peers.

Start time: 2023-03-01 21:06:34 UTC
Expected prefix: 2403:b00::/48
Expected ASN: 58521 (GARENA-SG Garena Online Pte Ltd, SG)
Event Details
Detected advertisement: 2403:b00::/48
Detected Origin ASN 269000 (JG TELECOM COM. E SERVS. LTDA, BR)
Detected AS Path 27553 6939 137831 26615 52695 269000
Detected by number of BGPMon peers: 3

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