Company executives should be concerned - and prepared - if their company ends up getting hit by a successful cyberattack, possibly leading to a data breach. However, a general misconception that the IT staff is proactive and ready to defend against cyberattacks often is not the case, especially with overworked IT teams unable to keep up.
Although there are steps to make a data breach preventable, they certainly aren't fool-proof - and every company should have plans in place if a breach occurs.
It's also worth noting that cybercrime is done for a number of reasons, and it's not just about stealing personal information, such as debit and credit card data. Although that appears to be the basis of the Target, Home Depot and other retailer breaches, there is a growing worry of cyberespionage targeting companies and their host nation.