Core Viewpoint - Coinbase experienced a significant data breach involving an outsourcing company, which led to an extortion attempt by cybercriminals demanding 20million[1][3][6].Group1:IncidentDetails−CoinbasewasinformedinJanuaryaboutunauthorizeddataaccessbycontractorsbutonlyrecognizedtheextentofthebreachafterreceivinganextortiondemandonMay11[2][6].−Thebreachinvolvedasmallgroupofinsiderswhocopieddatafromcustomersupporttools,affectinglessthan120 million reward fund for information leading to the arrest of the criminals [4]. - The estimated remediation costs for the incident range from 180millionto400 million, with ongoing investigations to determine the full impact [6].