Cisco Password Encryption
By default the passwords on Cisco routers and switches are saved in the configuration unencrypted. The only password that gets encrypted is the enable secret one. to encrypt all passwords on a Cisco router or switch you have to use the command below.
R1(config)#service password-encryption
The passwords stored in the configuration of the router or switch will now be hashed. There are sites on the web though that can decipher the hashed password so make sure you lock the router or switch down!
