Last week Ole Begemann wrote about implementing Sorted Arrays in Swift. Reading his blog, though, I found this little gem from a few weeks ago. The example he used is what caught my attention: parsing unsafe user inputs in strings to avoid attacks such as Cross-Site Scripting.
As web developers, we must keep in mind how simple things can be used improperly by the wrong people to try to get our websites down. This article was a great reminder of that.