If your password was hacked how would you know about it?
There have been many successful password hacks in recent years including a massive data breach at Adobe in 2013, LinkedIn in 2012 and several others since then and that hacked data is freely available for sale on the dark web.
Head over to https://haveibeenpwned.com/ pop in your email address and click the pwned? button.
If any of your accounts are known to have been breached this site will tell you about it, of course it's then up to you to go and change your passwords right away.
And for those who are curious enough to ask "What does pwned mean?" - click here to find out.