Well, this is reassuring:

More from The Hill:

It’s unclear whether the two did connect, or if they moderated any discussion they may have had to avoid sensitive topics while on an unsecure landline.

But the episode is likely to cause concern among critics of Clinton, who have previously accused her of resorting to unsecure forms of communication out of convenience, potentially jeopardizing sensitive information. Another email of Clinton’s, released in January, appeared to show her telling a top aide to remove identifying details and send a sensitive document through a “nonsecure” channel instead of via “secure fax.”

“This drip, drip of new Clinton emails show Hillary Clinton could not care less about the security of her communications,” said Tom Fitton, the president of the watchdog group, Judicial Watch, in a statement releasing Thursday’s email. “How many other smoking gun emails are Hillary Clinton and her co-conspirators in the Obama administration hiding from the American people?”

Ugh.

True story.