Summary:

- Researchers have developed a new type of "squid-skin" material that can dynamically change its appearance and encrypt information on a screen. The material is made of arrays of tiny magnets that can be reconfigured to display different patterns or images.

- The technology could have applications in cybersecurity, where the ability to quickly and dynamically encrypt information on a screen could enhance data protection. It could also be used in displays and camouflage applications that require rapidly changing patterns or colors.

- The material is inspired by the color-changing abilities of squid and other cephalopods, which use specialized cells to control the reflection and absorption of light. The researchers replicated this functionality using an array of magnets that can be rearranged to alter the material's optical properties.