Reportedly, Samsung has sent out tens of millions of smartphones with weak or faulty encryption. Estimates for the number of affected smartphones could reach 100 million and include all Galaxy S smartphones from the Galaxy S8 onwards. Samsung was made aware of the security issues nearly a year ago.
https://www.notebookcheck.net/Samsung-has-shipped-around-100-million-smartphones-with-faulty-or-weak-encryption.605646.0.html