All "yale" type keys are insecure. Go to Youtube and search for "bump key".
The funniest clip is of a Dutch lock picking club where they have spent years perfecting their craft.
The bump key man opens several locks in a few seconds with no skill needed, the others look *really* pissed off.
Your insurance will not pay up if someone uses one to open your house as there is no trace of forced entry.
As for me, I don't bother locking the door. This laptop is 9 years old and weighs 20lb! Plus you would have to swim with it across the Pentland Firth.
Paris, 'cos she leaves her doors open too