In TRIZ contradiction matrix,there is a difference between security and safety.
Security:-To hold tightly;to make safe
extra men are needed to secure the camp against attack
to secure the release of the hostages
a secured loan.------
Safety:-condition of being safe;
freedom from danger,harm or risk
being led to a place of safety
Safety checks are carried out
took all safety precautions
safety in numbers
Try to stay together as a group.
These are the difference.