Glossary
TLS / HTTPS
Encryption protocol for secure internet connections – visible as the padlock and "https://" in the browser.
TLS (Transport Layer Security) is the encryption protocol for secure internet connections. HTTPS is HTTP over TLS. In the browser, look for the padlock icon and "https://" in the address bar.
Heads-up: HTTPS only means the connection is encrypted – not that the website is trustworthy. Phishing sites today almost always have a valid TLS certificate too.
Why this matters in 2026
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How to protect yourself
A current operating system, an up-to-date antivirus suite, strong unique passwords (use a password manager) and two-factor authentication on all important accounts already cover the vast majority of real-world risk. Detailed guides: see our How-To section.