Previously only few buildings could be robbed like bank shopping mall or casino, people were avoiding crime by just not having it. Now there is always 20% chance for General crime(-5% income) and 80% for any of those buildings to get robbed.

This way there is always chance for crime to happen, you can't avoid it by not having banks/shopping malls/casino. Generally this 5% hit your city more than other crime if you have more than 1500 SIM income daily, then 5% of income is higher than Shopping Mall robbery(75 SIM)