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Markus Feilner

About Markus Feilner

Markus Feilner is a consultant for IT security, digital sovereignty and open source strategies from Regensburg. He has been working with Linux since 1994. He has been writing studies, articles and blog posts for Greenbone since 2021.

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Entries by Markus Feilner

Blog

Vulnerability scanner Notus supports Amazon Linux

Most virtual servers in the Amazon Elastic Compute Cloud EC2 run a version of Linux that has been specially customised for the needs of the cloud. The latest generation of scanners from Greenbone has also been available for the Amazon Web Services operating system for a few weeks now. Over 1,900 additional, customised tests for […]

11. July 2024/by Markus Feilner
Blog

“Security crises are like earthquakes” – Greenbone CEO Jan-Oliver Wagner at the PITS Congress 2024

“Support for early crisis detection” was the topic of a high-profile panel on the second day of this year’s PITS Congress. On stage: Greenbone CEO Jan-Oliver Wagner together with other experts from the Federal Criminal Police Office, the German Armed Forces, the Association of Municipal IT Service Providers VITAKO and the Federal Office for Information […]

17. June 2024/by Markus Feilner
Blog

Protection of Office Suites: Greenbone Integrates Additional BSI Basic and CIS Guidelines

The IT-Grundschutz-Compendium of the Federal Office for Information Security (BSI) has, in recent years, provided clear guidelines for users of Microsoft Office. Since April 2024, Greenbone’s enterprise products have integrated tests to verify whether a company is implementing these instructions. The BSI guidelines are aligned with the Center for Internet Security (CIS) guidelines. In the […]

23. May 2024/by Markus Feilner
Blog

Municipalities, authorities and companies under pressure: serious attacks on the rise, NIS2 becomes mandatory

After experts noticed a rapid increase in cyberattacks on local authorities and government agencies in 2023, the horror stories don’t stop in 2024. The pressure to act is enormous, as the EU’s NIS2 Directive will come into force in October and makes risk and vulnerability management mandatory. “The threat level is higher than ever,” said […]

11. April 2024/by Markus Feilner
Blog

Chinese hackers and Fortinet vulnerabilities: Warnings from US government

For several years in a row, the Californian manufacturer Fortinet has been in the public focus due to serious security problems. Known for its secure firewall, VPN and intrusion detection devices, the cyber security expert was again forced to announce several highly critical security vulnerabilities in February 2024. Staying informed and applying patches promptly is […]

15. March 2024/by Markus Feilner
Blog

Ivanti Connect Secure VPN: Greenbone protects against Zero Day

A series of flaws in Ivanti’s Connect Secure VPN is being actively exploited by attackers. Both the German BSI and the US government’s Cybersecurity and Infrastructure Security Agency (CISA) have spread a warning. CISA has even issued an Emergency Directive ordering all Federal Civilian Executive Branch (FCEB) agencies to apply patches immediately. Thousands of publicly […]

14. February 2024/by Markus Feilner
Blog

CISA warning: Serious Security Vulnerability in MS Sharepoint

Two security vulnerabilities in Sharepoint – both from last year – are currently causing trouble for Sharepoint administrators. Because attackers are increasingly exploiting a combination of the two vulnerabilities, the Cybersecurity Infrastructure Security Agency CISA is now also issuing a warning. Affected customers of the Greenbone Enterprise Feed have been warned since June 2023. Remote […]

6. February 2024/by Markus Feilner
Blog

CVE News: Critical vulnerabilities Atlassian and F5 Big vulnerability tests released by Greenbone

Our developers have provided vulnerability tests for two critical vulnerabilities in widely used enterprise software. Within a very short time, tests for CVE 2023-22518 und CVE 2023-46747 were integrated, and customers of Greenbone’s Enterprise Feed were protected. Knowledge management tools Confluence and Jira from Australian vendor Atlassian have been hit by a serious security vulnerability, […]

17. November 2023/by Markus Feilner
Blog

“Vulnerability management is becoming increasingly important” – Greenbone CEO Dr. Jan-Oliver Wagner at PITS Congress

Every year, IT and cyber security experts from public authorities, federal, state and local governments as well as the armed forces, police and intelligence services meet for the cyber security congress “Public IT Security” (PITS), initiated by Behoerdenspiegel. In 2023, the topic of vulnerabilities was once again at the top of the agenda. This year, […]

22. September 2023/by Markus Feilner
Blog

Master’s thesis: Automated vulnerability detection and response in the network perimeter

The long-standing cooperation between Greenbone AG and the University of Osnabrück has once again resulted in a successful master’s thesis. Under the title “Development of an Automated Network Perimeter Threat Prevention System (DETERRERS)”, Nikolas Wintering wrote his master’s thesis in the Mathematics, Physics, and Computer Science working group of the Department of Mathematics/Computer Science at […]

6. September 2023/by Markus Feilner
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