Thank you for reading the LinuxSecurity.com weekly security newsletter. The purpose of this document is to provide our readers with a quick summary of each week's most relevant Linux security headlines.

Guardian Digital Celebrates 20 Years of Revolutionizing Digital Security, Securing Email with Open Source - Pioneers of business email security for the past 20 years, Guardian Digital draws on the merits of Open Source coupled with expert engineering and unparalleled customer support.

Press Release: Guardian Digital Leverages the Power of Open Source to Combat Evolving Email Security Threats - Cloud-based email security solution utilizes the open source methodology for securing business email, recognized by many as the best approach to the problem of maintaining security in the relentlessly dynamic environment of the Internet.

  Cloud Security Research Reveals Challenges, Areas of Growth in Upcoming Years (Jun 25)
 

Two reports on cloud security were recently released: The 2019 Cloud Security Report and the Global Cloud Security Software Market report. The latter is a five-year forecast that covers 2019 through 2024. These reports showed where growth lies within the cloud security market and what challenges are presented to businesses who use or are looking to use cloud services.
  The Problem With Disk Encryption (Jun 27)
 

Full disk encryption provides incredible data protection for personal devices. If you havent enabled FileVault on your Mac, Windows Device Encryption on your PC, or Android Device Encryption on your phone, please go do it now (iOS encrypts storage by default). Its easy, efficient, and secure. You will likely never notice the difference in usage or performance. Seriously. This is a no-brainer.
  Raluca Ada Popa: Her computer security method could make firewalls a thing of the past (Jun 26)
 

Raluca Ada Popa found a fix for one of cybersecuritys most fundamental challenges: securing computer systems without employing firewalls to keep hackers out.
  FreeDOS turns 25 years old: An origin story (Jun 28)
 

June 29 marks the 25th anniversary of FreeDOS. That's a major milestone for any open source software project, and I'm proud of the work that we've done on it over the past quarter century. I'm also proud of how we built FreeDOS because it is a great example of how the open source software model works.
  Experts Weigh In On New Cryptocurrency Mining Botnet (Jun 26)
 

There is a new cryptocurrency-mining botnet that arrives via open ADB (android Debug Bridge) ports and can spread via SSH, according to Trend Micro.
  What is a botnet? When armies of infected IoT devices attack (Jun 27)
 

A botnet is a collection of internet-connected devices that an attacker has compromised. Botnets act as a force multiplier for individual attackers, cyber-criminal groups and nation-states looking to disrupt or break into their targets systems. Commonly used in distributed denial of service (DDoS) attacks, botnets can also take advantage of their collective computing power to send large volumes of spam, steal credentials at scale, or spy on people and organizations.
  Google University of Chicago Medical Center Accused of Sharing Patients Data (Jul 1)
 

Google and the University of Chicago Medical Center formed a partnership approximately two years ago with the goal of finding patterns in patients medical records for medicine and to better understand disease.