As the government struggles to hire skilled workers to fend off hackers, cyberattacks on federal agencies are up between 50 and 100 percent in the past year.

A new survey by the Professional Services Council found that at least 28 percent of chief information officers at federal agencies reported an increase in cyberattacks of 51 to 100 percent over the past year.

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The increasing threat of cyber hacks against the government isn’t surprising. Earlier this year, the Government Accountability Office listed federal IT operations as one of the most serious weaknesses in the federal government and in its annual “High Risk” report, the GAO labeled this vulnerability a major threat to national security.

Just last week, the Obama administration announced that Chinese cyber thieves hacked into the Office of Personnel Management’s massive government data system and accessed more than 4 million federal workers’ personal data. ABC News reported that the hackers potentially gained access to some Cabinet member data as well.

In the aftermath of the breach, President Obama called on agencies to ramp up cyber security efforts. However, the problem, according to the PSC survey, is that the government is having trouble recruiting skilled cyber experts.

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Some 63 percent of CIOs reported that their agencies were not sufficiently prepared to develop necessary talent. Most cited limited resources and government salaries as obstacles to competing with employers in the private sector.

Commerce Department CIO Steve Cooper said hiring young people is a major challenge. The average age of Commerce employees is about 50 years old, NextGov noted.

The CIOs’ responses are in line with a separate GAO report from earlier this year that found there is a major skills gap within the federal workforce when it comes to IT and cybersecurity.