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Changing shared account settings may alert the other person. Plan which accounts to separate first and do them in a safe order.
Monitoring Through Shared Accounts
Someone uses accounts you share — like a family phone plan, streaming service, or cloud storage — to track your location, purchases, or activity.
What You Might Notice
The other person knows about purchases, locations, or content you haven't shared
Shared accounts like Google, Apple Family, or phone plans often show activity to all members.
You discover location sharing is turned on with their account
Check your phone's location sharing settings — someone may have enabled sharing without you realising.
Unfamiliar devices appear in your account's trusted devices list
Someone else's phone or computer may be logged into your shared accounts.
What You Can Do
Review all location sharing settings on your devices
On iPhone: Settings > Privacy > Location Services > Share My Location. On Android: Google Maps > your profile > Location sharing.
Gradually move to your own individual accounts
Create new accounts with a fresh email address the other person doesn't know about.
Do this from a device and network you're confident isn't monitored.
Check your phone plan
Family plans often let the account holder see call logs, texts, and data usage for all lines.
Moving to your own plan is ideal, but timing matters — plan it.
Important: This resource provides general information, not personal advice. Every situation is different. The actions suggested here may not be safe in your specific circumstances — particularly if the person causing harm could notice changes to your devices or accounts. Always consider your physical safety first.
If you need personalised support, contact 1800RESPECT (1800 737 732) or your local specialist domestic violence service. If you are in immediate danger, call 000.
Exploiting legitimately shared accounts or location sharing services (Find My Friends, Google location sharing, family phone plans) to monitor victim beyond the scope of original consent. Often occurs in relationships where sharing was mutual but continues after separation, or where the perpetrator coerces ongoing access under the guise of reasonable family coordination.
Location Sharing Audit Review all location sharing configurations across devices and services. Disable unauthorised sharing.
SAFE-M-0011
Account Separation Migrate to individual accounts for services previously shared. Use new credentials unknown to adversary.
SAFE-M-0012
Carrier Account Review Assess family phone plan features that expose location or usage data. Plan migration to individual account.
Detection Indicators
ID
Detection Indicator
SAFE-D-0010
Shared Account Data References Adversary references location, purchases, or activities visible through shared account access.
SAFE-D-0011
Active Location Sharing Discovery Audit reveals location sharing enabled with adversary's account.
SAFE-D-0012
Unknown Devices on Shared Accounts Unrecognised devices listed in shared account trusted device lists.
The TFA Matrix is a research framework under active development. Technique classifications, detection methods, and mitigations reflect current understanding and are subject to revision. This framework does not constitute forensic methodology, legal evidence standards, or clinical diagnostic criteria. Practitioners should apply professional judgement appropriate to their discipline and jurisdiction.