Security researchers and hackers who find vulnerabilities need to realize that discretion is more important than valor, several federal security experts said at the Defcon hacking conference here this weekend. . .

Security researchers and hackers who find vulnerabilities need to realize that discretion is more important than valor, several federal security experts said at the Defcon hacking conference here this weekend.

Additionally, federal officials said they would use the government's massive purchasing power to force developers to improve the security of their products.

While acknowledging that software makers continue to release buggy products, Richard Schaeffer, deputy director of the National Security Agency, stressed that publicizing a vulnerability without warning and before a patch has been created could potentially threaten U.S. computing systems.

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