However, comments like "SSH runs in port 22 and my credentials are utku:123456. What is the likelihood of being compromised?" You have any idea what kind of RA

However, comments like "SSH runs in port 22 and my credentials are utku:123456. What is the likelihood of being compromised?" You have any idea what kind of RAM and computing power an average user have access now days. Think of better obscurity abstractions than that. Try bcrypt/scrypt hash your shadow password on linux.