Halil, the action-changing legal lane is this: CareCloud is the clearest privacy-notification workstream. On the facts you gave—EHR exposure, SSNs, medical and financial data, >345,000 people—counsel should preserve AWS access logs, IAM changes, object access records, breach-risk analysis, vendor communications, and affected-person data mapping now. If this is a HIPAA breach of unsecured PHI, HHS says covered entities must notify affected individuals and the Secretary “without unreasonable delay” and no later than 60 days, and if 500+ residents of a state/jurisdiction are affected, prominent media notice is also required. Do not rush a public notice in the next 24 hours before confirming population, states, PHI status, and whether CareCloud is acting as covered entity or business associate—but do not let “we are still investigating” become a reason to miss the HIPAA clock.
For Amgen, the legal pivot is SEC disclosure control, not just privacy. SEC Form 8-K guidance says an Item 1.05 report is due within four business days after the company determines it experienced a material cybersecurity incident, and that materiality determination must be made without unreasonable delay after discovery. So in the next 24–72 hours: preserve the third-party cloud contract, audit logs, PHI/R&D exfiltration evidence, board/disclosure-committee minutes, materiality analysis, and insurer/regulator communications. Avoid over-notifying by filing Item 1.05 before materiality is actually determined; if Amgen gives a preliminary voluntary update, keep it carefully scoped and avoid disclosing exploit details, R&D sensitivity, or unsupported PHI counts.
For the water/wastewater disruptions, I would not assert a uniform federal 72-hour mandatory notice from the evidence available here. Public leaders should preserve SCADA/OT logs, operator notes, service-impact timelines, water-quality records, vendor remote-access logs, and communications with state environmental/public-health authorities. Notify immediately where there is confirmed public-health, safety, service-continuity, or criminal activity concern, but avoid broad consumer breach-style notices unless there is evidence of personal-data compromise or a state/local public-health trigger. For the UK Police National Legal Database / Power Platform exposure, I could not verify the current UK notification text from the evidence available here, so I would not cite a UK deadline; practically, the DPO and senior responsible officer should preserve tenant audit logs, access-control history, affected record categories, and privilege-change evidence, and make the ICO/law-enforcement-processing assessment before any public statement names affected persons or case categories.