Microsoft Security Essentials (MSE) is an antivirus software product that provides real-time protection against different types of malicious software such as viruses, spyware, rootkits and Trojan horses.

Windows Security (known as Windows Defender Antivirus before Windows 10 May 2020 Update, Windows Defender before Windows 10 Creators Update, or Microsoft Defender Antivirus before Windows 11) is an anti-malware component of Microsoft Windows.

Advanced AI-driven protection software that offers real-time defense against new and known threats using machine learning for superior threat detection.

Website repository that checks what sites your email address was used on were compromised.

Open-source password manager with AES-256 encryption and device sync. Store and access encrypted logins across platforms like iOS and Android.

Online encrypted password storage with password generation, dark web monitoring, and two-factor authentication. Manage with security dashboard.

Free and open source password manager storing passwords in a local encrypted database with strong AES or Twofish encryption and master key access.

KeePassX is an application for people with extremly high demands on secure personal data management. It has a light interface, is cross platform and published under the terms of the GNU General Public License.

Optimizes systems by removing unused files and cleaning registries, speeding up PCs. Features include automatic cleaning, driver update, privacy protection.

Removes web history, cookies, and temporary files on Windows, frees disk space, shreds data for privacy, repairs system errors, and optimizes performance.

Erase unnecessary files like cache and cookies, maintain privacy, and optimize disk space on Linux and Windows. Supports various applications and uses.

Eraser is an advanced security tool (for Windows), which allows you to completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns.

Retrieve lost files from your PC, recycle bin, or portable devices with a free and user-friendly tool offering deep scans and secure overwrites.

Cryptomator provides transparent, client-side encryption for your cloud. Protect your documents from unauthorized access. Cryptomator is free and open source software, so you can rest assured there are no backdoors.

Secure and encrypt entire partitions or devices, including system drives, with automated, real-time protection and enhanced security measures.

BitLocker Drive Encryption is a data protection feature that integrates with the operating system and addresses the threats of data theft or exposure from lost, stolen, or inappropriately decommissioned computers.

GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.

Gpg4win enables users to securely transport emails and files with the help of encryption and digital signatures. Encryption protects the contents against an unwanted party reading it. Digital signatures make sure that it was not modified and comes from a specific sender.

End-to-end encrypted app for email, calendar, and contacts, requiring no personal data, with open source code and quantum-resistant security.

Secure Swiss-based email with end-to-end encryption and zero third-party access. Available across devices, offering a free version to promote privacy.