The ex-crime squad officer is now a contact tracer fighting the spread of coronavirus alongside pilots and cinema workers.
The Protect Scotland app has already told more than 100 Scots to self-isolate, Nicola Sturgeon revealed.
First Minister Nicola Sturgeon slammed the 'despicable' scammers.
The 'Protect Scotland' anonymously uses bluetooth technology to identify close contacts of coronavirus cases.
The 'Protect Scotland' proximity app which aims to help fight the spread of Covid-19 is available for free download.
The First Minister said contact tracing has been completed on 481 positive coronavirus cases.
The Scottish Government had set a target of having 2000 tracers by the end of May to support its mass Covid-19 testing regime.
Health secretary Jeane Freeman told MSPs work was under way on 'building up' existing health apps.