312-39V2: Certified SOC Analyst v2

Mark Reynolds, a SOC analyst at a healthcare organization, is monitoring the SIEM system when he identifies a potential security threat: a series of unusual login attempts aimed at critical patient-data servers. After investigating the alerts and working with the incident response team, the SOC concludes that the threat has a Likely chance of occurring and could result in Significant damage, including operational disruption, financial loss from data breaches, and HIPAA regulatory penalties. Using a standard Risk Matrix, how would this risk be categorized in terms of overall severity?