Guide
Android Secure Folders Knox And Manufacturer Security Containers
19 pages · 27 min read
Many Android phones feature a second, separately locked space, such as Secure Folder, Knox, or work profiles.
- Mobile and messaging evidence
§ Guide
Android Secure Folders Knox And Manufacturer Security Containers
This guide explains how Android phones often contain a second, separately secured space, and why this is frequently where crucial evidence resides.
Ref · E-D · 2026 · §LIBClass · ConfidentialJuris · England & WalesStatus · Active
Guide · 19 pages · 27 min read · Published 2026-09-02
Designed for UK legal practitioners navigating mobile device evidence, this reference addresses the risk of critical material remaining hidden within isolated secondary environments on Android smartphones. Modern devices frequently contain Samsung Knox Secure Folders, manufacturer private spaces, or work profiles that act as a second phone inside the main device, housing separate messaging accounts, applications, photos, and files behind distinct credentials. Explaining both technical and procedural requirements, the material examines how these security containers are protected, techniques for detecting them through system profile records, and methods for reaching them lawfully while preserving full chain of custody. Beyond local device storage, it details the wider source architecture across cloud backups and maker artefacts, honest technical limitations, and common mistakes made during investigations. Through worked examples, practical checklists, and suggested wording for interrogatories aimed at clients, opponents, and e-Discovery providers, the text equips legal professionals to identify concealed data, evaluate red flags, and determine precisely when to instruct a digital forensic specialist.
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Published by Computer Forensics Lab on 2026-09-02. Original material of the practice, free to read, cite and download. See every guide's author and source.
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Security Containers
A Second, Separately Locked Phone Inside the Phone, and Why It Is So Often
11 Questions to ask · Suggested wording
12 Checklist and red flags · When to involve a digital forensic expert
13 Frequently asked questions
14 Glossary · References · Disclaimer · How a specialist laboratory can assist
Executive summary
The headline point: many Android phones carry a second, separately secured space, Samsung's Knox-based
Secure Folder, other makers' private spaces, or Android's work profile, each a second phone inside the phone
with its own apps, second-account messaging, photos and files, sealed behind its own credential and keys and
must be looked for on every device and reached law full y.
§ 02 · FIRST PRINCIPLES
The problem in plain English: a second phone inside the phone
The containers: Secure Folder, Knox, private spaces and work
profiles
Ask your e Discovery / forensic provider
2. Please, preserving the device's state and integrity: (1) detect from the system's user, profile, package
§ 12 · QUICK CONTROL
Checklist and red flags · When to involve a digital forensic
expert
Working with Computer Forensics Lab
Speak to a forensic examiner, not a salesperson.
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Whether you are responding to a regulator, preparing for disclosure, or scoping an internal investigation, start the chain of custody with a short, confidential conversation.