Businesses are investing in more advanced endpoint security tools but don’t have the means to properly implement and use them, according to a new report from the SANS Institute.

The SANS 2018 Survey on Endpoint Protection and Response polled 277 IT professionals on endpoint security concerns and practices. In this year’s survey, 42% of respondents reported endpoint exploits, down from 53% in 2017. However, the number of those who didn’t know they had been breached jumped from 10% in 2017 to 20% in 2018.