Various notes on using passwords and passphrases.
- An easily-guessed password
- A compromised operating system / keyboard driver.
- A microphone recording key stroke audio.
- A person standing over your shoulder.
- Losing (or a person grabbing) your computer after you decrypt everything.
- Brute-force cracking.
Implementation flaws. e.g. the stuff on-disk may be secure, but the software that uses it may not be.
- This is by far the most problematic issue.
A compromised BIOS?