In his State of the Union address Tuesday evening, President Obama made reference to a new Executive Order he has signed that would strengthen security for the nation's computer networks.

The order makes the cybersecurity standards voluntary for companies. But the president urged Congress to pass legislation that gives the government more power to prevent cyber attacks.

Some military and intelligence experts have criticized the president's plan, saying it's significantly weaker than the plan his administration proposed two years ago.

Experts say companies should be required to meet security benchmarks because so much vital infrastructure is privately owned.