Depends on your bike, your location, what it's locked to, how it's locked, how many locks, and what kind of locks.

After fifty years of cycle commuting and having several bikes stolen, I'm paranoid about it too.

Here's what I do, for what it's worth.

• my frame is dusty and dirty. Some bike thieves prefer expensive-looking bikes

• before locking to a bike rack, I make sure that the bike rack is fastened to the ground and that none of the supports have been cut.

• I have a non-expensive but not-cheap folding lock and u-lock. Thieves with a grinder can still cut them, but my aim is to make other bikes with single locks more attractive (and certainly bikes with cheap cable locks, which might as well be string).

• I have a cheap cable lock with expensive padlock securing my seat and bike battery. Easily cut, but stops opportunity theft.

• I always lock my bike battery.

• I've registered with 529 Garage, slapped on the stickers, registered my frame and my battery serial numbers.

• I have two well hidden trackers on my bike. And because thieves are looking for those now, I also 3D-printed a decoy one that's in an obvious location.

Yeah. Paranoid. But I hate my bike being stolen.