Absurdly high game scores

[mmpmmp]

In playing Pyramid Solitaire, when most high scores average between 1850-1865, how can 

other posters get a high score  of 79,950 and of 35,525?

Leads me to believe that somehow your site is not really secure and somehow they are in your system or have the ability to manipulate your system.   

Can someone look into this please?