Secure software development life cycle
SSDLC · A development approach in which security is addressed at every stage, requirements, design, coding, testing and release, rather than at the end.
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Why it matters
A security problem spotted at the design stage is solved with a few hours of work; the same problem found after going live means emergency response, data risk and a new release. Threat modelling, secure coding rules, code review and automated tests are the core parts of this approach.
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Example
In the design meeting for a new payment feature, the team lists possible abuse scenarios: using the same coupon twice, changing the amount in the browser. The checks are written on the server side from the start.
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Common mistake
Thinking about security only in the final test before release. Design flaws found at that stage are either fixed late and expensively or carried into production as “we'll look later”.
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Related terms
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