"A booming industry of cybersecurity consultants, software suppliers and incident-response teams have so far failed to turn the tide against hackers and identity thieves who fuel their businesses by tapping these deep reservoirs of stolen corporate data." Sure, blame the consultants with their "booming industry". I'm sure T-Mobile spent adequate amounts of money on securing their data, hired all the best people, and…
I'm sure it's both. As in, much of what they did spend likely went to snake oil salesmen. I've met lots of security consultants who did not have backgrounds in math or compsci.
Because my degree is in Management Information Systems (MIS), but I've done troubleshooting on both performance problems of the O(n^5) variety and problems of the "not covered in the requirements document" variety... Not sure what else I need to understand, say, memory bounds-checking problems or firewall/ACL configuration problems.
EDIT: expanded acronym