How do I link a device, account, number and person?¶
Linking a device, account, number and person requires several independent connections.
What this means¶
Then identify the mobile number and network subscription.
Provider records may show which SIM and handset identifiers used the number at the relevant time.
Next map the accounts.
Then connect those technical elements to the person.
Possession, passcode knowledge, regular use, payments, photographs, messages, location, CCTV, witnesses and workplace or household evidence may all help.
Timing is essential.
A person may own the device but not have controlled it during the event.
A number may move to another SIM.
An account may be accessed from another device.
The handset may be shared or compromised.
Build a table or timeline showing each identifier, the source of the evidence and the period for which the link is supported.
What to check or do next¶
- Start with the device.
- Record its identifiers, SIM or eSIM, accounts, installed apps and physical possession.
- Look at device-account records, app logins, trusted devices, recovery details, IP addresses and session history.
- Do not treat registration details as conclusive.
Evidential limits¶
The subscriber may not be the user.
The account holder may not be the person operating the phone.
The operational takeaway is: attribution comes from overlapping links between device, SIM, number, account, session and person. Establish each link for the relevant time and test realistic alternative explanations.