They will still steal your seat, lights, wheel, and any other bit they can get.

Sure you can use all number of locks, security bolts, and stripping the bike down yourself every time you leave it, but it’s sucks. You’d rather public spaces just be safe.

Just follow the old Eve online adage - don't fly what you can't afford to lose.

If there's lot of theft and you can't store bike at a secure place - have a cheap bike.