For 21 years, the software company Kaseya labored in relative obscurity — at least until cybercriminals exploited it in early July for a massive ransomware attack that snarled businesses around the world and escalated U.S.-Russia diplomatic tensions.
In the meantime, cryptocurrency users (and nonusers intrigued by cryptocurrency’s promise) need to remain ever-mindful of the concept’s practical limitations.

Bitcoin’s volatility is more reason for investors to play a steady long game. If you’re buying for long-term growth potential, then don’t worry about short-term swings. The best thing you can do is not look at your cryptocurrency investment, or “set it and forget it.” As experts continue to tell us each time there’s a price swing — whether up or down — emotional reaction can cause investors to act rashly and make decisions that result in losses on their investment.
Nonfungible tokens, or NFTs, are yet another type of cryptocurrency, denoting that it is a one-of-a-kind asset and cannot be replaced. A Bitcoin, for example, is fungible, meaning you can exchange one for another and get precisely the identical thing. However, a one-of-a-kind trade card, on the other hand, cannot be duplicated. You’d get something altogether different if you swapped it for a different card.