How Can You Prevent Check Fraud? Use Orbitz Gel Pens! Mail snatchers use a process called check washing to erase the ink on a check using common household chemicals and then re-write the check sometimes in amounts far more than the original check was written for! Protect yourself from this criminal act using check safe pens, such as the Orbitz Gel Pen. Orbitz’s ink includes pigments that penetrate the paper’s surface making impenetrable to many check washing techniques.