Historic gross misconduct. Advice?

Im in the UK. I had a graduate civil engineering job over 5 years ago. I was sacked for gross misconduct for excessive internet use at work.

Another civil engineering company gave me a second chance, and I have now been with them for the last 5 years.

I am now looking at applying for a senior job in the industry at another company, but I am not sure how to address the gross misconduct from 5 years ago.

Is is likely that the gross misconduct will still affect my prospects, or will the last 5 years of unblemished employment override that?

usa jobs
usa jobs resume
usa hotel jobs
usajobs
usa jobs federal government
usa job in ksa
usa jobs
usa jobs login
usa jobs gov
usajobs.gov
www.usajobs.gov
usajobs.com
usajobs
usajobs.gov official