What are some other security measures I could take on the line console 0 besides physical security and local login? Could I change the baud speed? Could I change or disable the break sequence? Could I disable password recovery? Thanks in advance.
I don't have a Catalyst 4500 to test on but I believe you can change the config-register in config mode.
I just tried in a 6500,
<0x0-0xFFFF> Config register number