Not a day goes by without a story about a data breach, hacking incident or theft of personally identifiable information. The latest organization to have its data compromised is the U.S. Office of Personnel Management (OPM), the human resources department for several federal agencies. An estimated four million records of former and current federal employees may have been affected. A more disturbing statement from OPM is that it receives approximately 2.5 billion attacks in an average month.

[Related: Chinese hackers steal 4M federal personnel records: Here's what the breach means for insurance]

As the Travelers Business Risk Index—Cyber discovered, small businesses are often the targets of hackers, however, 20% of small businesses (those with fewer than 250 employees) were targeted with attacks in 2013, but as a group, they worry the least about cyber-related risks versus 70% of business risk managers at large companies and 60% for midsized companies. Even though small businesses are the most vulnerable, they are also the least prepared and least likely to be able to recover from a data breach. For some small businesses, one cyber attack can put them out of business.