It's extremely easy to detect a disgruntled employee making a copy of source code. There's no accidental button to leak. There's no source code on laptops as po

It's extremely easy to detect a disgruntled employee making a copy of source code. There's no accidental button to leak. There's no source code on laptops as policy doesn't allow it, with limited exceptions only. But there was a giant leak a long time ago. It was called Operation Aurora done by China. Legend has it that to this date the Chinese search engine Baidu still uses stolen code from Google.