Use Firefox Monitor to check if your email address has been involved in a data breach for free.
As I'm signed up to Mozilla's various developer and update emails I was informed of this fantastic free tool today and had to share with the community asap.
The wonderful people at "Have I Been Pawnd" to check email addresses against a database of known compromises.
All you have to do is go to Firefox Monitor tap in your email address and it will do an immediate scan to see if your address is among those in the database, if it is you'll see a brief report of the hack so you know to change the password on that account and anywhere else you've used the same password, you will not be asked to enter the password, just your email address.
You are then given the option to sign up for further alerts by email should there be a future breach, you don't have to pay anything or give away any personal details, it doesn't even insist that you sign up for communications from The Mozilla Blog.
The "Have I Been Pawnd" site itself also lets you perform the same check and has more information and tips.
I'm slowly running through all my email accounts, the first one I checked actually listed a breach from 2016 :O :O as you can see in this screen grab.
I had absolutely no idea about this potential issue, thankfully as far as I can tell no one had actually got into my email account, but earlier this year I did get an alert from Google warning me that they'd stopped someone in America accessing this account with the correct password so I needed to change it immediately which obviously I did. So good job Google noticed I'm not in America.
Please share this infromation with as many people as possible and let me know how you get on with your own checks as well. Maybe we can expand this thread with some more security advice and tips.
Thanks for reading,
EDIT:- Thanks to @captainben has beaten me to it and posted about "Have I Been Pwned" in his security alert here.