Hi,
How do you compare the security of websites built in ASP.NET with other websites bulit in other technologies such as Ruby on Rails, PHP…?
Well, security comes down to how well it was coded. But ASP.NET is quite secure if you know what you are doing and if you use SSL, just like any other language
A good resource on the interweb is Microsoft’s own website. This web page will show you all of the different types of security, and you could also compare it to bla bla bla and see which technology is better in the security department.
You can search or browse the security system of ASP.NET or other website technologies.