Why Systems Are Vulnerable Information systems are vulnerable to technical, organizational, and environmental threats from internal and external sources. The weakest link in the chain is poor system management. If managers at all levels don't make security and reliability their number one priority, then the threats to an information system can easily become real. The figure below gives you an idea of some of the threats to each component of a typical network. Internet Vulnerabilities "If electronic business is to prosper and truly move into the mainstream of commerce, everyone involved — merchants, financial institutions, software vendors, and security suppliers such as VeriSign — has to make security a top priority, starting right now. Security is very hard to get right under the best of circumstances and just about impossible when it isn't the focus of attention. If the industry doesn't get this right — and fast — it's setting the stage for a catastro
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