If you have euro type barrel locks on any of your doors they are not secure. We were burgled last night for my husbands car. The scum that did it snapped the lock on our back door with a tool you can buy on ebay for less than a quid. We were asleep in the room above with the windows wide open and didn't hear a thing.
All out locks are currently being changed to anti snap locks. They are only £40 each. We had no idea lock snapping was even a thing.
Also, while I'm being bossy, if you have more than one car don't have all the keys on one key ring. I have to get all the locks changed on my car and it's going to cost £500+ this is not covered by my insurance. Keep your keys seperate. You can only drive one car at a time.