The work of protecting information is becoming more difficult with time.  The recently discovered attacks on Google, Adobe, Marathon Oil, ExxonMobil, and ConocoPhillips illustrate an alarming trend.  The attacks even gave rise to a new attack model, the Advanced Persistent Threat (APT)...

https://www.infosecisland.com/blogview/3205-Google-Adobe-and-Big-Oil-Attack-Commonalities.html