The U.S.-China Business Council today criticized a new law aimed at thwarting cyberattacks by discouraging the Justice Department and several other government agencies from buying information technology systems from China, Reuters reported.

"The national security of the United States is critical, but it must not be used as a means of protectionism," John Frisbie, the group's president, said in a letter urging leaders in the Senate and the House of Representatives to block similar measures in the future.

Congress, reflecting growing U.S. concern over Chinese cyberattacks, tucked a new review process for U.S. government technology purchases into a funding bill signed last month by President Barack Obama.

The measure requires the NASA space agency, the Justice and Commerce departments and the National Science Foundation to get approval from law enforcement officials when buying new information technology systems, with a particular focus on whether the systems are "produced, manufactured or assembled by one or more entities that are owned, directed or subsidized" by China. Read more.