I got guns at home and my little one will start walking in 5-6 months. I'm scared shitless... I will buy biometric safe within next 3 months plus have all my gun triggers locked with combination codes.
Doubt your toddler is going to hack his way into the gun safe, but it does show a lack of actual security in a few models. (around 17 mins in, they reprogram a biometric lock to accept a new fingerprint from the outside with a tool the size of an allen wrench.) Video is from 2011.