Are Keyed Alike Locks Safe?

Negatives: While convenient, keyed alike locks are less secure than their keyed different counterparts. Keyed alike locks are optimal when locking indoor applications but they are not secure enough for exterior applications.

Is keyed alike a good idea?

Keyed alike means one key fits all locks, for example your front and back door locks can both use the same key or every lock in an office can use the same key. Having your locks keyed alike is very beneficial if you want to open & close all your door locks with one key.

Which locks are most secure?

Deadbolts. Deadbolt is often considered the most secure type of lock. What makes deadbolts unique is that they cannot be moved easily from the locked to unlock position.