According to ChainCatcher, based on a report from Greenberg Glusker, T-Mobile has been hit with a $33 million arbitration ruling due to SIM card swap attacks that led to cryptocurrency theft, caused by "multiple security vulnerabilities". The law firm Greenberg Glusker announced on March 20 that it had obtained this arbitration ruling against T-Mobile.

The arbitration, which took place in the fall of 2023, involved 12 days of testimony. According to Greenberg Glusker, the arbitration panel found T-Mobile responsible for "its multiple security failures that led to SIM card swap attacks, resulting in cryptocurrency theft".