secure-os wrote
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.
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Jul 3, 2026 in messaging, encryption, hardware key - Darkup is a new French encrypted messenger that ties your identity to a physical security key and uses Signal's Double Ratchet. Here is what it claims, how it is priced, and why it is not yet proven.
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Jun 29, 2026 in tails, encryption, persistence - Tails is amnesic by default. The Persistent Storage is an optional LUKS-encrypted volume on the same USB stick. How to create it, what to keep, and why it won't unlock.
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Jun 28, 2026 in encryption, data-sanitization, opsec - Why shred and dd do not work on solid-state drives, and the methods that do: ATA Secure Erase, NVMe Format and Sanitize, and crypto-erase by destroying the key.
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Jun 18, 2026 in encryption, gpg, pgp - GPG vs PGP confuses everyone - because they're not really competitors. PGP is the original encryption program, OpenPGP is the open standard, and GPG (GnuPG) is the free implementation most people actually use. What each one is, and which to choose.
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Jun 16, 2026 in messaging, encryption, signal - Looking for the best encrypted messaging app in 2026? Signal leads for most people, but Threema, Session and SimpleX win on specific needs. End-to-end encryption, metadata, and which to actually pick.
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Jun 16, 2026 in dns, privacy, encryption - Plain DNS leaks every site you visit to your ISP and network. Secure DNS fixes that. A practical guide to DoH, DoT, DNSSEC, how to turn encrypted DNS on, and the resolvers worth using.
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Jun 15, 2026 in email, encryption, privacy - The best secure email providers in 2026, honestly compared: Proton Mail, Tuta, Mailbox.org, Posteo and StartMail. What end-to-end encryption really covers, where each shines, and the honest limits of private email.
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Jun 15, 2026 in encryption, usb, veracrypt - How to encrypt a USB drive in 2026, step by step, on Windows, macOS and Linux - with free, cross-platform VeraCrypt, plus built-in BitLocker To Go, macOS encrypted volumes and LUKS. What encryption protects, and the honest pitfalls.
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Jun 15, 2026 in signal, telegram, messaging - Signal vs Telegram, honestly compared in 2026. Signal is end-to-end encrypted by default; Telegram's default chats are not. What that really means, where Telegram still shines, and the honest limits of each.
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Jun 14, 2026 in encryption, privacy, security - Encryption scrambles data so only someone with the key can read it. What encryption is, symmetric vs asymmetric, at-rest vs in-transit, end-to-end encryption, and the honest limits - explained by threat model.
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Jun 12, 2026 in encryption, luks, opsec - A practical guide to full disk encryption across Linux, Windows, macOS and cross-platform tools - what it protects, what it does not, and how to get it right.
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Jun 12, 2026 in luks, encryption, linux - A complete guide to LUKS2 full-disk encryption on Linux - cryptsetup commands, header backup, TPM auto-unlock, performance benchmarks, and what to do when your header is lost.
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Jun 12, 2026 in veracrypt, encryption, disk-encryption - A thorough, honest review of VeraCrypt 1.26 - how to create encrypted containers, hidden volumes, and whole-disk encryption on Linux, Windows and macOS. Includes real limits vs LUKS and BitLocker.
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