What Is a VPN and Do You Need One?
What a VPN actually encrypts, what it doesn't fix, and how to evaluate a provider without falling for marketing.
Security articles on Martsyl Tech Journal.
What a VPN actually encrypts, what it doesn't fix, and how to evaluate a provider without falling for marketing.
The three common forms of phishing, the red flags worth memorizing, and how to verify and report it safely.
Understand public and private IP addresses, what a VPN changes, and the privacy limits of IP masking.
Use calm, legal phone-assisted and physical checks while knowing their limits and what to do with evidence.
How 2FA actually protects your accounts, the real differences between SMS, authenticator apps, and passkeys, and how to turn it on.
Use Instagram's official recovery tools, secure the linked email, and prevent a second takeover.
The security risks worth prioritizing in 2026, plus practical defenses for people and small teams.
A plain-English guide to viruses, ransomware, trojans, and spyware, plus prevention steps and what to do if you're infected.