The horror story that I heard was a disgruntled engineer silently replaced the source codes (C++ based) in the project with compiled binary object files and he kept the source codes on his local computer, not checking those in. He did this over an extended period of time to make sure this crept into the backup tapes as well. No one found out because each engineer owned a code module of their own. Then he resigned.
When his successor tried to debug and enhance the code base, the core files were basically all stripped binary object files...
When his successor tried to debug and enhance the code base, the core files were basically all stripped binary object files...