"Human couriers carry the most sensitive information," Mr. Gunaratna said.
Parliamentarians serving in the intelligence and security committee are privy to the most sensitive information.
"I try to keep my most sensitive information off the Internet completely," Mr. Kocher said.
He said, however, that the panel would be denied "the most sensitive information" touching on Britain's national security.
Create the strongest passwords for the sites that contain the most sensitive information and do not reuse them anywhere.
Prosecutors can interrogate witnesses about the most sensitive information: personal betrayals, long-held secrets, even sexual activity.
By cracking smart cards, hackers eliminate the final hurdle between themselves and some of the government's most sensitive information.
The Creditcards.com case is one of several recent attempts to extort money from Web sites by threatening to reveal their most sensitive information.
He retired from the C.I.A. in 2006 after 29 years, and no longer has access to the nation's most sensitive information.
Bradley P. Moss, a national security lawyer, said Kushner's status will deny him the most sensitive information pertaining to Middle East peace negotiations.
As Mr. Clinton's private lawyers, David E. Kendall, Mickey Kantor and Nicole K. Seligman are the keepers of some of the most sensitive information in Washington.
