Steganography is the art of hiding a message. The purpose of steganography is to hide a message from a someone you don’t want to see it. It is different than cryptography, the art of secret writing, which is intended to make a message cannot be read , but does not hide the existence of the […]

PGP (Pretty Good Privacy) is an encryption software that is mostly known for its use in email. It is used for encrypting, decrypting, and signing emails and files. Today we’ll focus on two of its most valuable features: verification and signing. Why check PGP signatures? Signing and verifying the signatures is important for data integrity. […]

Encryption is the process of encoding information so that only certain people can see it. To encrypt data, you use an encryption key. Similar to how a key is used to lock something, you use the encryption key to encode or lock plain text into encrypted text or ciphertext. There are two main types of […]

The Principle of Least Privilege is the idea of providing the lowest level of access to all user accounts to reduce privileges to resources, systems, and networks. Only user accounts that require access to the specified resource are given access. Additionally, access is only given when it is needed, and then it is revoked.  For […]

Attaching the Ubuntu Advantage subscription to Ubuntu, brings the enterprise lifecycle, including Linux kernel livepatching, access to FIPS validated packages, and compliance with security profiles such as CIS. Installing the UA client This step is necessary for Ubuntu Advantage customers or holders of personal subscriptions. If you are an Ubuntu Pro user, your subscription is […]

Secure/Multipurpose Internet Mail Extensions, or S/MIME, is an internet standard to digitally sign and encrypt email messages. It ensures the integrity of email messages remains intact while being received. By using digital signatures, S/MIME provides for authentication, message integrity, and non-repudiation of origin. In addition, S/MIME includes encryption that strengthens privacy and data security for […]