How a VPN works (and why you should care)

The best VPNs can make your online life more private with software that's convenient and cheap — sometimes even free. While ...
Security Boulevard

SSH vs SSL/TLS: Definitions & Differences of Communication Protocols

What is SSL/TLS? SSL and TLS are protocols used on the transport layer, which is used to provide a secure connection between two nodes in a computer network. The first widely used protocol that was ...
Bleeping Computer

Tor switches to new Counter Galois Onion relay encryption algorithm

Tor has announced improved encryption and security for the circuit traffic by replacing the old tor1 relay encryption algorithm with a new design called Counter Galois Onion (CGO). One reason behind ...
PC Magazine

The Best Email Encryption Services for 2026

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 ...
Investopedia

Hash Rate: What It Is, How It Works, and How to Measure

Scott Nevil is an experienced writer and editor with a demonstrated history of publishing content for Investopedia. He goes in-depth to create informative and actionable content around monetary policy ...
Investopedia

Luhn Algorithm: Verify Credit Card Numbers & Ensure Accuracy

Khadija Khartit is a strategy, investment, and funding expert, and an educator of fintech and strategic finance in top universities. She has been an investor, entrepreneur, and advisor for more than ...