Computer system and network security are basis of security of distributed database system.

计算机系统和网络的安全是分布式数据库系统安全的基础。

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The new systems include an online booking system, e-prescriptions and fast computer network links between NHS organisations as well as the electronic records system.

BBC: Electronic records is one part of the ?6.8bn IT upgrade

To take one example, an ObamaCare-mandated update to a major computer network called the System for Electronic Rate and Form Filing, which governs insurance approvals, has been delayed by months.

WSJ: Review & Outlook: Hope and Exchange

After confirming the breach, the Chamber shut down and destroyed parts of its computer network, proceeding to revamp its security system over a 36-hour period.

ENGADGET: Chinese hackers target U.S. Chamber of Commerce, sensitive data stolen