April 10, 2025
RELIGION. DIGITAL MARKETING. PROJECT MANAGEMENT. ITIL 4 AND MORE
The term “endpoint” is defined in various ways. For the purpose of this course, we can define endpoints as hosts on the network that can access or be accessed by other hosts on the
Host-based personal firewalls are standalone software programs that control traffic entering or leaving a computer. Firewall apps are also available for Android phones and tablets. In this article, I want to talk about some
In order to detect serious security incidents, it is important to understand, characterize, and analyze information about normal network functioning. Networks, servers, and hosts all exhibit typical behaviour for a given point in time.
The Common Vulnerability Scoring System (CVSS) is a risk assessment tool that is designed to convey the common attributes and severity of vulnerabilities in computer hardware and software systems. The third revision, CVSS 3.0,
Risk management in cybersecurity involves the selection and specification of security controls for an organization. It is part of an ongoing organization-wide information security program that involves the management of the risk to the organization
An Information Security Management System (ISMS) consists of a management framework through which an organization identifies, analyzes, and addresses information security risks. ISMSs are not based on servers or security devices. Instead, an ISMS consists
Various protocols that commonly appear on networks have features that make them of special interest in security monitoring. For example, Syslog and Network Time Protocol (NTP) are essential to the work of the cybersecurity
Many technologies and protocols can have impacts on security monitoring. Access Control Lists (ACLs) are among these technologies. ACLs can give a false sense of security if they are overly relied upon. ACLs, and
Alert data consists of messages generated by intrusion prevention systems (IPSs) or intrusion detection systems (IDSs) in response to traffic that violates a rule or matches the signature of a known exploit. A network IDS
As previously discussed, host-based intrusion detection systems (HIDS) run on individual hosts. HIDS not only detects intrusions but in the form of host-based firewalls, which can also prevent intrusion. This software creates logs and stores
The tcpdump command-line tool is a very popular packet analyzer. It can display packet captures in real-time or write packet captures to a file. It captures detailed packet protocol and content data. Wireshark is a
Use Of Security Onion As A Source Of Alerts Security Onion is an open-source suite of Network Security Monitoring (NSM) tools that run on an Ubuntu Linux distribution. Security Onion tools provide three core
The threat landscape is constantly changing as new vulnerabilities are discovered and new threats evolve. As a user and organizational needs change, so also does the attack surface. Threat actors have learned how to quickly
A typical network has a multitude of different logs to keep track of and most of those logs are in different formats. With huge amounts of disparate data, how is it possible to get
The primary duty of a cybersecurity analyst is the verification of security alerts. Depending on the organization, the tools used to do this will vary. For example, a ticketing system may be used to
Now that you have investigated and identified valid alerts, what do you do with the evidence? The cybersecurity analyst will inevitably uncover evidence of criminal activity. In order to protect the organization and
The Cyber Killer Chain was developed by Lockheed Martin to identify and prevent cyber intrusions. There are seven steps to the Cyber Kill Chain. Focusing on these steps helps analysts understand the techniques, tools,
The Diamond Model of Intrusion Analysis is made up of four parts, as shown in the figure. The model represents a security incident or event. In the Diamond Model, an event is a time-bound
Incident Response involves the methods, policies, and procedures that are used by an organization to respond to a cyber attack. The aims of incident response are to limit the impact of the attack, assess
With the Covid 19 pandemic ravaging the country, more and more businesses have had to shift online. While many businesses struggle to get their feet off the ground in the online sphere, organizations that