"It was important to me because I turn off my notifications, and for me it's one application at a time. So I just have one app up, and I can really focus on what's in front of me instead of everything coming at me as I would a laptop."

Instead of a pesky keyboard, Dorsey said he uses dictating and voice typing tools. His lack of a laptop appears to be more for practicality and work-life balance than security.

"I think anything can consume all of your time, but definitely the devices we have just have so much on them, so much interestingness, and you can certainly go down a hole. So I've developed a lot of personal practices: I don't check my phone in the morning until I'm about to walk into work and when I'm working on my phone I turn off notifications so I'm not constantly reacting to what's coming at me." 

"When we're having meetings, phones down, laptops closed so we can actually focus and not just spend an hour together but make that time meaningful — and if that time is 15 minutes, then it's 15 minutes, we move on with our lives. If we have our phones open, if we have our laptops open, and all these things are coming up, we just get distracted."

But speaking to the question of security, Dorsey made an argument for mindfulness and awareness.

"In terms of privacy and security, I think the most important thing is that you're mindful of it. That you're aware of it, that you are aware of the tools at your disposal to understand what data a company or service has on you, that there are controls to turn that off. That you have two-factor authentication turned on all of your accounts, that you change your passwords on a regular basis — I know it’s a pain but it’s extremely important."