What is a Cross Currency? A cross-currency refers to a currency pair or transaction that does not involve the U.S. dollar. A cross-currency transaction, for example, doesn't use the U.S. dollar as a ...

Forget about email hackers—what if someone nabs your external drive and all the data on it? Thwart thieves with the strong encryption and security features of one of our top-rated drive picks. (We've ...

According to quantum theory, communication systems based on single-photon signals, where two parties share random secret keys known only to them, could provide unbreakable encryption. However, ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Indicator species are living organisms that tell us that something has changed or is going to change in their environment. They can be easily observed, and studying them is considered a cost-effective ...