Knowledge

Zero Trust eXtended framework (and how to establish it with Cisco’s solutions)

Author: Stojan Rančić

Learn how to limit unauthorized network and data access by leveraging the Zero Trust Architecture principles - a continuous endpoint authentication and authorization for your IT environment using Cisco technologies.

Microsoft Managed Security Services

Author: Eugen Rusen

Envisioning workshop for Managed Security as a Service that empowers organizations on their Cloud and Zero Trust journeys.

Cisco Zero Trust Architecture

Author: Stojan Rančić

In this lecture, Stojan Rančić covered the main pillars of ZTA and showed the ways of achieving the perimeterless security using Cisco technologies.

The challenges of new security protocols

Author: Stojan Rančić

The new protocol version TLS 1.3 allows for safer network communication, while creating new security challenges and concerns. We recommend that you review the security features of your environment before TLS 1.3 becomes widely used.

What do the Meltdown and Spectre vulnerabilities mean for IT environments?

Author: Stojan Rančić

Who is affected by the Meltdown and Spectre vulnerabilities and how can you protect your IT environment against the attackers?

How to defend against DDoS attacks?

Author: Srečko Milanič

DDoS attacks are relatively inexpensive and easy to execute, so every organization is a potential target. How to respond against a DDoS and mitigate the threat?

Critical WPA2 vulnerability: you must update your devices and Wi-Fi infrastructure

Author: Stojan Rančić, Urban Jurca

Hackers can exploit the KRACK attack to intercept encrypted wireless traffic and thereby steal your sensitive information, such as passwords, credit card numbers, personal information, and professional secrets, if those travel through the wireless network unencrypted.

Let it only be me who is (pen)testing my home network (Part II)

Author: Matevž Mesojednik

I the previous series, I illustrated a few specific weaknesses of badly reputed networking protocol, namely UPnP. But why not evaluate home router’s security posture from the inside and see how well it performs. See where this lead me.

Let it only be me who is (pen)testing my home network (Part I)

Author: Matevž Mesojednik

I got challenged the other day, having been given an opportunity to demonstrate some real-world hacks as part of the FRI student's Garage. The desired topic was cyber-attack surface within SOHO environments. 

The Suspicious Seven: A Network Visibility Checklist

What to do when your network is already compromised? This checklist outlines seven of the most common types of network blind spots and suspicious activities that every security team needs to be able to see. If you can’t detect these activities, you are giving threats a place to hide on your network. 

When Sniffer Meets Analytics and Big Data

Author: Robert Turnšek

When IT infrastructures evolve into complex systems full of legacy equipment and services, troubleshooting often turns into arcane magic or a game of whack-a-mole. If you haven't thought about network sniffing and reporting tools, it's high time you do.

Engineering expertise represented NIL in the best possible light

Ronald Reagan UCLA Medical Center from Los Angeles, USA, was redesigning their network infrastructure. NIL assisted them with upgrading their optical DWDM network and with migration of legacy firewalls to Cisco ASA 5585.