Ian Levy has looked into his "Crystal Ball" and seen that some big may  possibly happen, sometime in the next few years...possibly...

Cyber attacks occur everyday and the majority occur because of normal people making simple mistakes. These normal people are the techies and the people in other departments (yes, techies are normal people too!). The techies are the weakest link because they don't install important security patches, they set weak passwords and they misconfigure systems to be insecure (or build in security flaws into the code that leaves exploits open!). The other employees are the weakest link because they fall for phishing emails and let people tailgate.

Yes, a Cat 1 cyber attack will one day hit but we don't need a crystal ball to predict that, even a Symantec one...