Ciphers and invisible ink – many of us experimented with these when we were children. A team of Chinese scientists has now developed a clever, high-tech version of "invisible ink". As reported in the ...

Coded messages in invisible ink sound like something only found in espionage books, but in real life, they can have important security purposes. Yet, they can be cracked if their encryption is ...

Fluorescent inks that are visible only under ultraviolet light are useful for data security and anticounterfeiting but are limited in their usefulness because anybody with a UV lamp can visualize the ...

Invisible inks based on “smart” fluorescent materials have been shining brightly (if only you could see them) in the data-encryption/decryption arena lately ...

Scientists have invented sophisticated fluorescent inks that one day could be used as multicolored barcodes for consumers to authenticate products often counterfeited. Snap a photo with your ...

A lead-based ink can be used to print invisible messages that become legible when decrypted with a chemical trigger. Conventional ‘invisible’ inks are not very secure, because they are easily read ...

Researchers at the University of Michigan have developed a kind of electronic “invisible ink” that can help alert users to any unauthorized tampering with a device. When the chip is exposed to light ...

Jean-Michel Basquiat, the late neo-expressionist whose tragic life story inspired a 1996 film, used invisible ink to draw secret figures in at least one of his early paintings, Artnet News reported ...

Coded messages in invisible ink sound like something only found in espionage books, but in real life, they can have important security purposes. Yet, they can be cracked if their encryption is ...