They're overlooking the most obvious risk of all: that the person who creates a Yahoo e-mail account can simply hand the password off to others so they can access the messages directly.
For that matter, there is no certainty that a Yahoo address like huma@yahoo.com was even created by Huma in the first place.
“For that matter, there is no certainty that a Yahoo address like huma@yahoo.com was even created by Huma in the first place.”
I believe she already testified earlier that this was her account where she often forwarded email from Hillary and then printed out material for her.