Even though the company frequently receives complaints about accounts being hacked, it simply tells the customer to attach an authenticator to their account.
At games were a significant milestone is likely to occur, there is a Major League Baseball authenticator on hand, and usually another expert authenticator from a memorabilia company.
Besides using a third party authenticator consistently at every game, Major League Baseball allows its fans to trace their memorabilia purchases online by using a unique ID number and hologram.
Considering that players are ultimately responsible for securing their own computers, and that the extra step required by the Authenticator is an added inconvenience during the log in process, we ultimately leave it up to the players to decide whether they want to add an Authenticator to their account.