Hush-Hush NSA Lifts Veil on How Businesses Help Fight Hacks (2)

The U.S. National Security Agency, which is renowned for its secrecy, has opened its arms to the private sector and, at least for a day, the media.

The agency invited reporters on Tuesday to tour its Cybersecurity Collaboration Center, an unclassified space opened last year where private companies can swap information with the spy agency about cybersecurity threats and overseas hackers. It’s part of an effort by the agency to deepen its relationship with American companies in the hopes of thwarting cyberattacks in the U.S.

The NSA is prohibited by law from accessing American computer networks, so it hopes ...