Solo Developer Releases Local-First Windows Security Suite Requiring No Account

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A solo developer has released ATLOCK v4, a Windows security suite built around a local-first architecture that requires no account, no cloud connection, and no subscription. The application bundles four core features: a locally encrypted password vault using PBKDF2-HMAC-SHA256 key derivation, NTFS-based file protection leveraging Windows' native ACL model, an intruder detection module that captures evidence on failed login attempts, and a portable executable requiring no installation. The developer designed ATLOCK to keep all security-sensitive operations on the user's own machine, deliberately avoiding the common pattern where security software transmits data to external servers. ATLOCK is not positioned as a replacement for enterprise tools like BitLocker or dedicated password managers, but rather as an experiment in how much a single local application can realistically achieve without cloud dependencies. The project is distributed as a standalone Windows executable, available via the developer's GitHub Pages site.

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