Just adding a me too. I get notices from Logmein about every month or so that there has been a failed attempt to logon to my Hamachi account. Most recently was today from Kiev, Ukraine. I've sent a support request asking if there is a way to block logins from outside the U.S. No answer yet. At work, we have a SonicWALL firewall router with nearly all non-US countries blocked unless we open them. Seems like a big outfit like Logmein could have that feature per account.
If you receive a log in attempt email and you know that it was not made by you. Please log into your accounts and change your password to something new and unique. If you notice that you're receiving multiple emails (ckayem) I would strongly recommend also changing the email address that you use for your login ID.