Google is among several companies putting money into a fund to help safeguard the Internet from possible security flaws in open-source software. Marcio Jose Sanchez/AP hide caption

toggle caption Marcio Jose Sanchez/AP

A lock icon signifies an encrypted Internet connection. But thanks to a recently discovered (and now fixed) bug, it's been bleeding out information for a few years. Mal Langsdon/Reuters/Landov hide caption

toggle caption Mal Langsdon/Reuters/Landov