RC4 is a symmetric stream cipher that was used widely to encrypt network communications in the 1980s and 1990s. It was originally not widely used because it was maintained as a proprietary trade secret but the algorithm has since become public knowledge. In this video, learn details about the implementation, use, and security flaws of the RC4 algorithm.
- [Instructor] Business continuity professionals … have a variety of tools at their disposal … to help remediate potential availability issues. … One of the critical ways that IT professionals … protect the availability of systems … is ensuring that they're redundant. … That simply means that they're designed in a way … that a failure of a single component … doesn't bring the entire system down. … Business can continue in the face … of a single predictable failure. … The single point of failure analysis process … provides security professionals with a mechanism … to identify and remove single points of failure … from their systems. … Let's look at an example. … Here we have a simple web-based application, … a web server protected by a firewall … and connected to the internet. … As we conduct a single point of failure analysis, … we might first notice that the web server itself … is a single point of failure. … If anything goes wrong with that server, … the web service will stop functioning. …
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