IP change, what are the consequences?

Question

Computer networks

Interested in the following, I have a static IP, for example, I terminate the contract with the provider and switch to Yota.
Accordingly, all my further actions occur with a new IP address. Now the question itself, if, for example, my old IP falls into bad hands, and starts doing various bad things (brute force of the services that I used, mass registration of accounts, etc.), is this something that is fraught with me? After all, in fact, yesterday this IP could be mine.

Answer 1

a very strange question, do you have something on this ip now besides nat and going outside? mail, sites, dns?