It's no surprise that the US Department of Energy (DOE) is a major target for cyberattacks, but new data shows just how often the agency gets hit: between 2010 and 2014, attackers breached DOE's security 150 times, according to a report today by USA Today.

USA Today via the Freedom of Information Act acquired records of the security incidents from DOE's Joint Cybersecurity Coordination Center. Attackers attempted to hit systems with data on the power grid, nuclear weapons stockpile, and DOE's laboratories, USA Today reports.

The agency reported 1,131 attack attempts during a 48-month period, of which 159 were "successful," the publication reports.

Read the full report from USA Today here.