No, I've never been attacked, and I don't have a plan if I am attacked.
No, I've never been attacked, but I have a plan in place if I am attacked.
No, I've never been attacked, but I have a service in place to mitigate attacks.
Yes, I've been attacked, and I don't have a plan in place if I am attacked again.
Yes, I've been attacked, and I have a plan in place if I am attacked again.
Yes, I've been attacked, and I have a service in place to mitigate future attacks.