The term "alphanumeric" encompasses both letters and numbers, creating a versatile set that forms the foundation of written language, computer programming and secure password creation. Learn more ...

If your passwords consist of letters and numbers, beware. Swiss researchers released a paper on Tuesday outlining a way to speed the cracking of alphanumeric Windows passwords, reducing the time to ...

Some Web sites only allow alphanumeric characters (letters and numbers) in their passwords. This invites bad passwords, lowering security for everyone. Jonathan Eunice, co-founder and principal IT ...