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Les Bell and Associates Pty Ltd
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Information security consulting and education
Information security consulting and education

6 followers
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A look at the future of cybersecurity - systems that defend and patch themselves.
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There's an important security awareness principle here: don't focus on what you don't want users to do - instead teach them to do the secure thing every time.
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Added photos to SE220 CISSP Fast Track Review Seminar.
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The crew from the SE220 CISSP Fast Track Review course in Melbourne, 17th - 21st June
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SE220 CISSP Fast Track Review cours
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Added photos to SE220 CISSP Fast Track Review Seminar.
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Attendees at the CISSP Fast Track Review course, Sydney, 27th-31st May. Bearing up under the strain of five days of security talk. . .
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It appears that Verisign/Symantec is quietly backing away from the personal certificate business. Despite talking money for Class 1 Individual Subscriber certificates, they haven't been distributing the required CA certificates, so that the certificates can't be verified or even imported by others.
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Software Testing

"Software must be made correct by construction, not testing. Testing is literally a trial-and-error process. No mature field of engineering or manufacturing relies on testing to reveal design errors. They test to find defects in materials and investigate the effects of wear and other physical phenomenon that programmers do not even have to worry about [Adams, 1991]. Using testing to find mistakes in our own code is a poor use of everyone's time. Testing is inconclusive, and it comes too late to do much good. The proper role of testing is to confirm our understanding of the requirements and check our assumptions about the compiler, operating system, hardware, and other aspects of the environment where our program has to work. When we are done, testing demonstrates to customers and other witnesses that the development was done correctly."

Jonathan Jacky, "The Way of Z", p. 18. Cambridge University Press, 1996

See http://staff.washington.edu/jon/z-book/index.html and/or http://staff.washington.edu/jon/z/z-examples.html
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