Hacking is generally a clever way to accomplish a task using unexpected methods. In the computer world, that means exploiting flaws in programs, but when dealing with a cat, hacking means finding clever ways to accomplish something to make your life with a cat easier.
One trick is to keep cats off counter tops by using scotch tape. By putting the sticky side of tape on a counter, cats will land on the sticky tape and get annoyed, which theoretically means the cats won’t jump on the counters any more.
Of course, your cat can hack you back by simply pooping on your bed or peeing on your pillow, so be wary of using too many hacking techniques on you8r cat or your cat might hack you back.