Although most small-business owners permit employee use of mobile devices, including smartphones and tablets, few practice strategies to keep these devices safe from cyber threats, according to a recent study commissioned by AT&T and the Polytechnic Institute of New York University.

In fact, 90 percent of respondents allow work email access through mobile devices, and 41 percent of respondents let their employees use these devices to access business files. Another 83 percent of respondents allow personal devices to be used for work purposes.

Still, only 65 percent of respondents say they are worried about information and data security of wireless devices while 91 percent of respondents say computer and online data security is concerning. Only 29 percent of respondents report installing antivirus software on smartphones.