Anglan

I'm thinking about getting a boat in the next year or so as my dad has lived on one for the past 10 years and I always enjoyed it - plus the savings wouldn't be totally awful! Problem is he has spent the vast majority of his time in marinas and I think I'd prefer to be a continuous cruiser. Now obviously within a 20 mile radius working and continuously cruising is possible but I wondered if anybody has had any experience with boat security whilst away at work? Things like break ins, vandalism, people untying ropes or any number of other things? I would be out of the boat between 7am and 5pm every day and in my head a narrowboat is quite vulnerable being held in place with only rope during the day. If so, what steps can be taken to prevent it? Trackers, security cameras etc? Any help would be appreciated! Or equally call me a paranoid nutjob, any feedback is helpful!