First, it’s a smart idea to use a keyfile, especially if you are going to email yourself the file or be sending the database over the internet (don’t ever send the keyfile via email or a non-secure connection). A keyfile is basically a 4096 random character password, so it will take a few hundred years to be cracked by bruteforcing it, as opposed to a typed password. Use the keyfile in addition to your typed password – you will need both to access your database, so be sure to save both in a safe place!

Second, its not a smart idea to be checking your bank accounts on a kiosk computer anyways, even if you are using a tool like Keepass. If you are on your own laptop using a public network, like at a cafe or airport, I always recommend connecting to a secure VPN first (your work or university probably has one you can log into). This will ensure that all traffic between you and the website is encrypted. You can also set up an SSH tunnel using PUTTY if your feeling techy (you can also use that at work to get around filters and avoid snooping network admins). Just Google PUTTY SSH Tunnel for instructions.