According to his LinkedIn he joined DigiCert as a lawyer. This is an organizational failure of DigiCert's leadership to put a non-technical person in the CISO role.
Enough companies are looking for their CISO to be an attorney, or to also be an attorney, because you spend a lot of your time threading through laws, contracts, policies, company risks, and parter risks, etc.
Much of it at that level is NOT architecture and software discussions. You wouldn't think the job would be similar to lead counsel, but unfortunately a majority of a certain company's risk now a days is in that area.