Apple Inc and Alphabet Inc’s Google earlier this month unveiled an ambitious plan to jury-rig billions of smartphones into coronavirus-tracking beacons, hoping to help public-health authorities fight the disease and pave the way to end lockdowns that have crippled the global economy.
Now, just weeks after the announcement, the programme is already facing serious challenges and it’s unclear whether the system will ever be used at a large scale. Persistent concerns about privacy, weak consumer adoption, and the lack of a coordinated government effort on testing could all pose obstacles to the companies’ push. Some governments have already struck out on their own, building systems used by millions without needing Apple and Google’s help.