ruphus13 writes "According to security company Palamida, the use of open source code is growing rapidly within businesses. However, the lack of documentation and understanding of how the code works can increase the vulnerability and security risks the companies face. OStatic quotes Theresa Bui-Friday saying, 'In 2007, Palamida's Services team audited between 300M to 500M lines of code for F500 to venture-backed companies, across multiple industries. Of the code we reviewed, Palamida found that applications written within the last five years contain 50% or more open source code, by a line of code count. Of that 50% of open source code, 70% was undocumented. This is up from 30% in 2006.' How can businesses protect themselves and still draw on open source code effectively?"