I doubt you noticed it yourself, since it's nothing out of the ordinary in a tech discussion, but your original comment is condescending in tone. Given that his

I doubt you noticed it yourself, since it's nothing out of the ordinary in a tech discussion, but your original comment is condescending in tone. Given that his entire business is built around providing customer service that uniquely avoids the kind of strict, condescending, and unsympathetic approach towards computer security your comment implies, I thought his reply was informative and appropriate rather than overly sensitive and defensive. If anything, it really highlights the additional burdens of his approach and suggests that computer security as a service to consumers is about more than just security.