Staying ahead of evolving cyber threats means developing technology and people, according to several defense officials testifying to the Senate Armed Services subcommittee on emerging threats and capabilities.

Ken Gabriel, acting director of the Defense Advanced Research Projects Agency, told the committee DoD is "capability-limited...both defensively and offensively," according to a Defense.gov report.

In his testimony, he reiterated that:

• Attackers are able to penetrate DOD networks;

• Users remain the weakest link in cybersecurity;

• The defense supply chain is at risk; and

• The U.S spends billions on cybersecurity but with only a limited increase in protection.

President Barack Obama has asked for $3.4 dollars for the Pentagon to spend on cybersecurity.

This story is part of Federal News Radio's daily Cybersecurity Update. For more cybersecurity news, click here.