Do you have a LinkedIn account?
If so you may wish to check if your password is one of the ones stolen by a Russian hacker.
The LastPass password checker will look through the list of published passwords and indicate whether or not your account is one of the compromised accounts.
Alternatively just go and change your password on LinkedIn.
People often use the same password on multiple occasions across the internet - so please take the utmost care with any emails or accounts associated with your LinkedIn account (Such as banking, Guild Wars etc.)