Cybersecurity

Cybersecurity Common network ports and what they're for Port 80, 443, 22, 3306: what the most common network ports are for, and why some should stay closed. Free Cybersecurity Essential HTTP security headers CSP, HSTS, X-Frame-Options: the HTTP headers that protect a site against the most common attacks. Premium Cybersecurity Password best practices Length, uniqueness, password managers: the rules that actually protect your accounts, without losing your mind. Free Cybersecurity Symmetric vs. asymmetric encryption One key or two? AES, RSA, TLS: understanding the difference between symmetric and asymmetric encryption, without the maths. Premium Cybersecurity VPNs: how they work and when to use one Encrypted tunnel, hidden IP, public wifi: how a VPN works and in which cases it actually protects your connection. Free Cybersecurity Common attack types: phishing, ransomware, DDoS Phishing, ransomware, DDoS, social engineering: a glossary of the most common cyberattacks, so you can recognise them. Free Cybersecurity Backups: the 3-2-1 rule 3 copies, 2 different media, 1 offsite: the 3-2-1 rule so you never lose important data. Free Cybersecurity SSL/TLS certificates: how they work The little padlock in your browser: how an SSL/TLS certificate works and what it actually guarantees. Premium Cybersecurity Cookies and web trackers: the basics Session cookies, third-party cookies, trackers: how a site remembers you and follows you around the web, explained plainly. Free Cybersecurity Two-factor authentication (2FA): methods and best practices SMS, authenticator app, hardware key: the different 2FA methods and which one to prefer. Premium Cybersecurity Password managers: how they work and why use one Encrypted vault, master password, auto-generation: how password managers actually work. Free Cybersecurity Securing your home Wi-Fi: best practices Password, encryption, guest network: the essential settings for a safer router. Free