Methods and systems are disclosed for isolation of collaboration software on a host computer system. A networked computer system may include a network, a first host computer system, a border firewall and/or a web proxy. The host computer system may be configured to run a collaboration software application or process that enables interaction with one or more other host computer systems. The collaboration software application or process may be run within an untrusted memory space. The collaboration software application or process may enable interaction between a second host computer system and the untrusted memory space such that the second host computer system may access meeting data within a sandboxed computing environment operating within the untrusted memory space.