Getting fired due to a breach?

Just got an email inviting me to a seminar - hosted by SecureState. But what caught my eye was this statement,

"7 out of every 10 breaches ends with someone losing their job"

I was shocked! 70% of all breaches result in the firing of someone involved in the breach? Or is it the failure to defend this breach resulting in the CISO losing her/his job?

I had never seen this research before and did not know this problem was so acute. Be very interested to know the source of this research. The seminar information is here.

Will post again when I find out more...