Building up your retirement savings is difficult and often takes a lifetime of hard work and careful planning. That's what makes it so painful when some of the country's most vulnerable citizens are targeted by scams that result in the loss of thousands of dollars.

This past Tuesday, New York attorney general Eric Schneiderman issued a consumer alert for five phone scams that have become commonplace and often show a spike during summer months. Oftentimes, these scams are able to fool unsuspecting senior citizens because they include details one would think scammers don't have access to.

Check out the slideshow below to see what you -- or a senior citizen you know -- have to be on the lookout for.