The bad news is that input validation is difficult. White listing, or identifying all possible strings accepted as input, is nearly impossible for all but the simplest of applications. Black listing, ...

In Part 1 of this series, I showed you an example of PowerShell's native validation capabilities. In that installment, I wrote a function that accepted a text string as input. The function then used ...

When coding in a script, or even in a fully-featured software application, it's important to account for as many scenarios as possible. To limit the number of possible scenarios, it's a best practice ...

Some of the most embarrassing database breaches of the past few years boil down to one big root cause: poor input validation and sanitization imposed by developers who create Web applications that tap ...

If your automated script takes action based on a value, it's critical to make sure the value is correct. Good thing PowerShell has ways to validate the values that are passed to a function. In recent ...