Data leak prevention (DLP) tools might give enterprises a start on their data loss issues, but they don't always solve the whole problem, a new study shows.

A survey by security vendor DeviceLock indicates that many DLP users are still leaking data, according to a news report.

Thirty-eight percent of respondents haven't deployed any DLP technology -- or even device control, according to the study. Among small and midsize businesses, that figure rises to more than 50 percent, DeviceLock says.

Even among the enterprises that have deployed DLP, there are leaks in the implementations, according to the survey. Nearly half (48 percent) of respondents said they aren't yet monitoring synchronization between smartphones and the corporate network. Only 26 percent say they have the ability to control content printed from corporate computers.

More than three-fourths (77 percent) of respondents say they monitor employees' Webmail and social networking applications -- such as Facebook and Twitter -- to prevent data leakage, regardless of whether corporate or private accounts are used. Only 8 percent of respondents believe that privacy concerns are an obstacle for enforcing such controls.

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