Google teaming up with NSA on cybersecurity. What could go wrong?

Under an agreement that is still being finalized, the National Security Agency would help Google analyze a major corporate espionage attack that the firm said originated in China and targeted its computer networks, according to cybersecurity experts familiar with the matter. The objective is to better defend Google — and its users — from future attack.

Google and the NSA declined to comment on the partnership. But sources with knowledge of the arrangement, speaking on the condition of anonymity, said the alliance is being designed to allow the two organizations to share critical information without violating Google’s policies or laws that protect the privacy of Americans’ online communications. The sources said the deal does not mean the NSA will be viewing users’ searches or e-mail accounts or that Google will be sharing proprietary data.

The partnership strikes at the core of one of the most sensitive issues for the government and private industry in the evolving world of cybersecurity: how to balance privacy and national security interests.