Every online bank transfer, private message and Bitcoin transaction rests on the assumption that some math problems are ...

The best VPNs can make your online life more private with software that's convenient and cheap — sometimes even free. While keeping your IP address invisible, you can use your VPN to explore streaming ...

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...

We don’t know exactly what he said, but in 1971, Ray Tomlinson used Arpanet to send the first email ever. You can bet he was only thinking about getting the message to its destination, not about ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Robert Kelly is managing director of XTS Energy LLC, and has more than three ...

How the shuttering of a small US-funded news outlet explains Trump’s governing philosophy.