I wouldn't worry about it, but it is important to have a strong password
. It isn't an isolated issue, but unfortunately it does happen quite frequently on just about anything on the net with a password and username. The only difference is that you receive a notification from us. I also want to add that it's very unlikely that they will be successful if you have a strong password in place.
In any case, if you notice that there is an issue with your account, i encourage you to contact us, and we'll be happy to look into it for you.
Providing me the IP address that it gives you, helps as well