Larger charities often have software to track, lock and wipe mobile devices (often called MDM or Mobile Device Management software) but smaller charities may not have the infrastructure for this, or may rely more on BYOD (people’s own) devices.
That’s why the latest guidance from Which? could be helpful, and perhaps worth sharing with your teams. Have a look at https://www.which.co.uk/news/article/what-to-do-if-your-phone-gets-stolen-aFAHd0j0oXoW.