The two communicated via email to maintain a professional appearance. Mr. Informant initially sent samples through personal cloud storage.
That said, for cloud evidence, encrypted drives, or modern NVMe arrays, you should complement it with newer tools like AXIOM, Cellebrite, or the latest FTK Imager v7. But for classic disk imaging—E01s, DD, and logical previews—FTK Imager 3.4.0.1 is a masterpiece of forensic engineering. ftk imager 3.4.0.1