If you’re not a security expert and you're looking for a crypto filesystem, you may be wondering about the alternatives. We took at a look at some popular crypto options for Linux.

Encrypting a home directory is easy. Encrypting your whole hard disk – including the root filesystem – takes a little more effort.

The Anubis mail manipulation daemon lets you centralize encryption for outgoing mail.

If you’re serious about keeping secrets, try hard disk encryption with DM-Crypt and LUKS.

Thunderbird offers several options for secure email, and the GnuPG-based Enigmail encryption add-on provides an additional layer of protection.

Security experts are always concerned with WLAN access points, but they sometimes forget that the client is also open to attack. Public hotspots make it quite easy for attackers to hijack connections, as the Hotspotter tool demonstrates.

The leading email applications include new features for helping users secure and authenticate their mail messages, but each tool has a different approach to handling tasks such as signing and encryption. This article describes how to add encryption and digital signatures to the Thunderbird, Kmail, and Evolution mail clients.