Password Hunting

Password in files or as a filename

grep --color=auto -rnw '/' -ie "PASSWORD" --color=always 2>/dev/null
locate password | more
find / -name password 2>/dev/null

Try "Password=" or "pwd" or "credentials" or "creds"

SSH keys

find / -name id_rsa 2>/dev/null
find / -name authorized_keys 2>/dev/null