secure-os wrote
Sep 4, 2026 in vpn, privacy, network - A VPN sends your traffic through an encrypted tunnel to a server that then talks to the internet for you. What that hides, who sees it instead, and the four common expectations it does not meet.
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Sep 4, 2026 in tor, anonymity, network - Tor sends your traffic through three volunteer relays, each of which knows only its neighbours. How the layers work, why it is slow on purpose, and the difference between what Tor hides and what a VPN hides.
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Sep 4, 2026 in vpn, protocols, privacy - WireGuard is faster, smaller and reconnects instantly. OpenVPN is older, slower and hides better on hostile networks. What each protocol gives up to get what it is good at, and the one privacy detail your provider has to solve for you.
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Sep 4, 2026 in privacy, browser, tracking - Fingerprinting identifies you by how your browser is configured, not by a cookie you can delete. How to check your own in two minutes, why installing more privacy extensions often backfires, and the only two approaches that genuinely work.
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Sep 4, 2026 in encryption, windows, cloud - Password-protecting a folder, encrypting it into a container, and turning on full disk encryption solve three different problems. Which one matches your actual threat, what each leaves visible, and the mistake that makes cloud folders leak anyway.
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Sep 3, 2026 in phishing, 2fa, mfa - Adversary in the middle phishing proxies the real login page in real time, so the code from your authenticator app lands in the attacker's hands and the stolen session cookie keeps working after you close the tab. How AiTM works, why one factor type survives it, and what to check.
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Sep 3, 2026 in surveillance, privacy, alpr - Automatic license plate readers photograph every car that passes, not only wanted ones, and keep the plate, the time, the place and often the image. What ALPR collects, how long networks retain it, why a retention period is the real privacy setting, and what you can and cannot do about it.
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Sep 2, 2026 in encryption, cryptography, standards - A working list of the encryption algorithms in real use today - AES, ChaCha20, RSA, Ed25519, SHA-2, Argon2id - what each one is for, which are officially retired, and what the post-quantum standards change.
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Sep 2, 2026 in linux, distros, hardening - Kicksecure is a security-hardened Debian derivative from the Whonix developers. What it hardens, how it differs from Whonix and Tails, who it is for, and its honest limits.
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Aug 1, 2026 in ssh, fail2ban, hardening - Fail2ban bans IP addresses after repeated failed logins, which lowers the noise in your logs. The project itself states it cannot eliminate the risk of weak authentication, and names what to use instead.
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Jul 31, 2026 in linux, hardening, systemd - systemd-analyze security scores services from 0 to 10, but the manual is explicit that a high score does not mean a service is vulnerable. What the tool measures, what it cannot see, and why settings must be combined.
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Jul 18, 2026 in email, encryption, pgp - How to encrypt your email in 2026, step by step: the easy way with an end-to-end provider like Proton Mail, PGP/GPG for full control, and S/MIME. Honest limits on metadata, subject lines and what encryption really covers.
Read more…Operating systems
Which secure OS fits which threat model - compartmentalisation vs amnesic vs Tor-routed.
Read the guides →Encryption
LUKS, BitLocker, FileVault and VeraCrypt - what each protects, and what it does not.
Read the guide →Hardening
Practical hardening built around the adversary you actually face.
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