You have to have a thick skin if you think what you are doing is right.
Digital safety is no different to physical safety. You can do your upmost to minimise it. You can arm yourself to protect yourself, but in the end there are criminals everywhere and that's the way of the world.
I think that Britain's broadband vision needs to be about more people using broadband rather than macho claims about the speed of the technology.
I have an enormously privileged position. I make a lot of money - a matter of public record - I have a huge amount of help, and I'm more in control of the day and what I do than someone working shifts on the checkout, or running the produce department in a supermarket.
I have no hesitation in challenging government of whatever party.
Once it becomes mandatory to report that you've had data stolen, blackmailing you is a waste of time. Blackmailing you to keep quiet - you can't, because you've got a legal obligation to tell everyone.
I promise you I try very hard to stay out of party politics. I run away from it.
I am a physical retailer by trade - if your shop is burgled you don't immediately think, 'Is it North Korea? Is it the Mafia?' But with cyber you don't know initially whether you're dealing with a state actor, as they call them, a small-time criminal, an insider.
Unfortunately cybercrime is the crime of our generation.
I miss the racing hugely. If you told me I could go off and do it tomorrow afternoon I would. For me that's always been my way of shutting everything off and relaxing.
I'm still here, living proof that sometimes it's OK to admit to your fallibility.
If you have a bonus scheme that is so complicated or so sensitive that you can't tell people what it is, then you shouldn't be doing it.
But I was an utterly hopeless politician and I worked out that I would be much better suited to making money and running businesses than the compromise that is politics.
I made a really stupid promise to my husband in my early 20s, when he and I were first going out, that I would retire as a jockey when I was 40.
It is not often that one of the world's best entrepreneurs rings you up and says 'I've got this business we are about to float off as an independent company and we'd like you to be chief executive.'
It's very tempting to go part-time and take up a number of non-executive directorships because everyone is crying out for talented women.
I'm a really big believer in chief executives not staying forever.
After seven extraordinary and fulfilling years, during which we have transformed TalkTalk's customer experience and laid the foundations for long-term growth, I've decided it's time for me to start handing over the reins at TalkTalk and focus more on my activities in public service.
I've always been of the view that two-term presidency rule is a pretty good one and CEOs shouldn't overstay their welcome.
I am enormously proud of how we have transformed the TalkTalk customer experience.
