Marketo forms: Prevent adding HTML links in open text field?

[mwmarketing]

Does Marketo provide the ability to prevent users from adding html links within the Marketo form (Field Type: Text Area)? We had a phishing attempt on one of our contact us forms trying to take you to a malicious page. 

What do we need to adjust so these can’t happen?

[SanfordWhiteman · Accepted solution]

No, but you have to realize that mail clients (most notoriously Gmail) will hyperlink sequences of words that just.happen.to.have.periods.between.them. Even without or http:// or https://. So the solution is to throughly sanitize output, rather than trying to catch all types of input. I wrote a blog post about this a long time ago.