Stuck at the certificate prompt or getting “No valid certificate,” “403,” or “Client auth required” when accessing Army email? On Windows, successful sign‑in usually comes down to a working CAC reader ...

You can sign PDF documents in Windows, completely electronically, using the PDF viewing program Adobe Reader. Here's how.

TSA's new biometric eGates use facial recognition technology to help people get through airport security even faster. Here's ...

You can move Google Authenticator to a new phone so that your new device can gain an additional level of security through two ...