Readers of a certain age will remember those 'invisible ink' spy toys that let you write a 'secret' message which would only appear after rubbing the page with half of a lemon. Yeah, this is not that.

Many people and companies worry about sensitive data getting hacked, so encrypting files with digital keys has become more commonplace. Now, researchers have developed a durable molecular encryption ...

Ink containing polymers that can store data has been used to write a letter containing a hidden message – the encryption key to unlock a text file of L. Frank Baum’s The Wonderful Wizard of Oz. Eric ...

Every time you send a text, pay for groceries with your phone, or use your health site, you are relying on encryption.

In the indictment that led to the expulsion of 10 Russian spies from the U.S. last summer, the FBI said that it had gained access to their encrypted communications after surreptitiously entering one ...