Hand-held computers used to store phone numbers, medical and credit-card information leave millions of gadget lovers fully exposed to identity-theft and other crimes, security experts said Saturday.

Software is now widely available to allow people to steal passwords and other information from popular Palm-based computers, especially when they connect to other computers to share data, said Bryan Glancey, a manager at wireless security services provider MobileArmor of St. Louis, Missouri.

Read more: CNN.