Vulnerability Scanning

Cybersecurity is the most important and most valued aspect of the internet today. Without adequate security measures, corporate data could be stolen and misused by malicious individuals.
The operating systems and software we use most often contain numerous vulnerabilities. These vulnerabilities can be caused by human error, poor software design, computer viruses, Trojans, worms, and other malware. These vulnerabilities compromise computer networks and data behind the scenes. In enterprises that heavily rely on networks, these vulnerabilities lurking in networked computers and servers can cause significant losses. Vulnerability scanning is the second stage in the five stages of preventing hacker intrusion. Through vulnerability scanning, information within the system is obtained, such as the IP address of a specific target, the operating system version, the network and host system architecture, and the services running on the host.
Vulnerability Scanning first searches for all connectable computers in the system, then identifies the open ports on those computers, and further detects the type and version of the operating system running on the target host (OS fingerprinting). Finally, it detects the relationships between network services that are running or waiting on the target computer.
Vulnerability Scanning can be broadly categorized into the following three types:
1. Port scanning - When a hacker wants to compromise a host, they send a series of special messages to test which network services are running on that host. Each network service opens a specific port. Commonly used network services generally use well-known port numbers.
2. Network Scanning - If hackers can identify which hosts on the target network are accessible and "active," they can narrow down their attack scope and determine which hosts can be targeted.
3. Vulnerability Scanning - The purpose of vulnerability scanning is to detect and discover the weaknesses and vulnerabilities that exist on the scanned hosts within the target network, so as to exploit these weaknesses and vulnerabilities to carry out intrusion attacks.

Inspection items

1. Help businesses understand the weaknesses of various network devices, systems, and servers in their existing environment, and obtain effective improvement solutions through vulnerability scan results analysis reports.
2. Assess the security of the enterprise's internal network and systems to prevent attacks based on any known (preventable) vulnerabilities.
3. Assist system administrators in patching vulnerabilities to prevent hackers from exploiting them.
4. Assist enterprises and organizations in formulating and revising information security policies to reduce overall information security risks.