It means someone is using their own LinkedIn account, not their employers - in the same way that there are implications if you use your own personal laptop rath

It means someone is using their own LinkedIn account, not their employers - in the same way that there are implications if you use your own personal laptop rather than a company laptop (i.e. where personal data is stored) or your own personal email account rather than a company email account... The individual's account is giving them access to view and copy other people's personal data on LinkedIn...