Of the Irgun's members, almost all were part-time members. They were expected to maintain their civilian lives and jobs, dividing their time between their civilian lives and underground activities. There were never more than 40 full-time members, who were given a small expense stipend on which to live on. Upon joining, every member received an underground name. The Irgun's members were divided into cells, and worked with the members of their own cells. The identities of Irgun members in other cells were withheld. This ensured that an Irgun member taken prisoner could betray no more than a few comrades.