Cross-carrier digital ledger for subscriber identification module (SIM) related data
US12149941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2022 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Apr 25, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/128
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system can detect a change associated with a subscriber identity module (SIM) of a wireless device and generate a data record indicative of the change. In one example, the data record is stored on a digital ledger residing on a cryptographically secured and distributed peer-to-peer network (e.g., blockchain) that stores multiple data records of changes to SIMs of wireless devices. The system can determine whether a wireless device is impacted by malicious activity based on an age of its data record stored on the distributed ledger. For example, an aged data record indicates a lower probability that the wireless device was the subject of a SIM swap fraud whereas a newer data record indicates a higher probability of a SIM swap fraud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.