Portable data storage media meaning

Physical, removable devices used to store and transport electronic data in legal practice, including CD-ROMs, DVDs, USB drives/memory sticks, SD cards, external hard drives and portable SSDs. The term is descriptive rather than defined in legislation or case law, and is often used interchangeably with “removable media” across data protection, information governance, e-disclosure/eDiscovery and digital forensics. Because these devices are easily lost, copied or taken offsite, their use engages duties of confidentiality, legal professional privilege and information security. Handling personal data on portable media must comply with the UK GDPR and the Data Protection Act 2018 (UK), and in Ireland with the GDPR and the Data Protection Act 2018 (Ireland). Regulators (e.g., the ICO and the DPC) typically expect encryption, access controls, logging, and data minimisation. Typical practice points: restrict or disable use by policy; encrypt at rest and in transit; maintain an asset register; record chain of custody; preserve potential evidence using forensic imaging and hashing; use write-blockers; and ensure secure erasure or destruction at end of retention. Across England & Wales, Scotland, Northern Ireland and Ireland, usage and risks are broadly consistent, subject to any local court or regulator guidance on format, disclosure and transmission.