1st way to stalk my profile.
I'll let you in on a massive personal secret - I use gmail for my email. Now we're even ( ͡° ͜ʖ ͡°)
2nd they were yahoo emails which is owned by google
Just because Yahoo is owned by google doesn't mean they are using Google's account security. Yahoo has got to be one of the worst email providers on the planet and their security is virtually nonexistant.
Here's one of the most famous examples:
http://blogs.computerworld.com/14786/poor_programming_makes_yahoo_email_insecureI remember not more than 2 years ago if you knew a person's birth date or their pet's name you could reset their Yahoo email password without them getting any sort of notification or warning that their account had been through a password recovery. Gmail does not allow this to happen and furthers their security by encouraging you to pair your cellphone number to your Google login so that you get a text every time someone tries to access your account from an unusual IP address or gets your password wrong.
I've had my Google account since the private beta in 2004 and have NEVER had my account compromised in any way, even before they implemented more advanced security measures. Before that account I also used Yahoo because it was one of the only providers of free email addresses in existence - under Yahoo my account had been hacked twice in a span of a year.
If you want to stop getting your email hacked, stop using email providers that don't take their users' privacy and security seriously.