Second Hand iPhone 11 with active eSIM

Bought a second hand iPhone 11 from reputable reseller which arrived reset and ready to be set up. After activation it became apparent that the previous owner had an eSIM on the phone which was still active as the default network carrier was incorrect and messages were received that were intended for the previous owner.

By following instructions online the eSIM has now been erased and the phone is working perfectly on the correct network. However I am concerned that the previous owner may have been able to access iCloud data, messages, photos, etc. Should I take any further action?