Open source technology allows end users and developers to view and modify source code. It has various benefits including being free, continually evolving through community contributions, and not locking users into specific vendors. There are different open source licenses that comply with the open source definition by allowing free use, modification and sharing of software. Open source makes sense for financial services by enabling innovation through building on others' work and collaborating to solve problems faster. It encourages participation and contribution which can benefit society.