Daughter’s account being used by someone else

This probably doesn't apply to you, but here's one scenario where someone else's activities can get into your account:   
1.) You purchase a used Garmin device from a guy who wasn't ever a member of Garmin Connect or Strava, but his activities are still on the device.
2.) You sync the device through Garmin Connect which is tied to your Strava profile.
3.)  All the old owner's activities get pushed to your Connect and Strava.

You do seem to have some additional twists and turns.  Keep us posted.   

Thanks for the response. She only used the app through her phone. Her name and profile picture are still the same and all her old activities are there just the two random ones added 🙄

Any chance that your daughter used e.g. Facebook to log into Strava (instead of using the email address & password combination)? If so, you should be able to deauthorise the login as described here: https://m.facebook.com/help/170585223002660?locale2=en_US 

(note - if this is the case, she might need to also change her Facebook password, as this would indicate that someone else was able to access her account)

Hello ​@Cathl 

Thanks for your post.

If your daughter is still having this issue, please ask her to submit a ticket to Strava Support.

Please note that all account and subscription inquiries will need to be handled by our Support team. The Community Hub is  for general questions and information while our Support team will handle questions that require account access.

Link to  submit a support ticket. If she has trouble with our online form, she can send an email to support@strava.zendesk.com.

Please click here for more information about the Support Process