Specifically these two sentences are hard to understand:<p><pre><code>     Hey the other day you said you said that the downloaded certificate is one factor, so with the password, that&#x27;s already two factors, and the rotating token would be three.

     But the CTO is confused then -- how was the certificate securely transmitted in the first place, to the point that we can count it as a second factor?
</code></pre>
They are complex sentences. This makes them hard to understand.<p>The email&#x27;s reading level is at grade 11 on the Flesch-Kincaid scale. [1] Anything above 9 is considered &quot;Fairly difficult to read&quot;. Best selling authors tend to score less than 9. A lot less.<p>You don&#x27;t need to write emails like you were a best selling author of course. That&#x27;s silly. But it helps if you write them for the recipient. Don&#x27;t just word vomit your train of thought.<p>Here&#x27;s how I&#x27;d write your email (from what I can guess&#x2F;understand of the situation):<p><pre><code>     Hey,

     The other day we talked about auth factors in our app. You said the certificate was one factor.
     Adding the password, that makes two. A rotating token would make three.

     Do we really need the rotating token, then?

     But the CTO is confused: how do we know the certificate transmitted securely? It can&#x27;t be an auth factor if we&#x27;re not sure.

     Cheers,
     ~Bla
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That said, we have way over-analyzed your email :)<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Flesch%E2%80%93Kincaid_readability_tests" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Flesch%E2%80%93Kincaid_readabi...</a><p>[2] <a href="https:&#x2F;&#x2F;contently.com&#x2F;strategist&#x2F;2015&#x2F;01&#x2F;28&#x2F;this-surprising-reading-level-analysis-will-change-the-way-you-write&#x2F;" rel="nofollow">https:&#x2F;&#x2F;contently.com&#x2F;strategist&#x2F;2015&#x2F;01&#x2F;28&#x2F;this-surprising-...</a>