IT security is the practice of defending digital information from unauthorized access, disclosure, recording, use, disruption, destruction or modification. IT security is being applied to devices such as computers, smartphones, servers, network and internet. It also includes physical security to prevent theft or access to the IT equipment to protect the data on the equipment. IT security involves processes such as IT risk assessment and vulnerability management followed by countermeasures that can be put in place in order to ensure security of the data.
IT Security Assessment
CARE’s IT professional carries out regular IT security assessment for companies to reduce any IT vulnerabilities that might lead to a compromise of their valuable data. Vulnerability is a weakness which allows a cyber attacker to compromise a system’s information. In order for a system to be compromised, three crucial elements must interact – the system susceptibility or flaw, perpetrator’s access to the flaw, and perpetrator’s capability to exploit the flaw. To be able to secure the IT system properly, it is important to understand the various types of “attacks’ that can be made against it. These threats can be classified into the below categories:
A backdoor is a method of bypassing normal authentication so that the cyber attacker can access the IT system remotely.
The common distribute denial of service (DDoS) attacks uses a large number of compromised hosts, commonly referred to as ‘zombie computers’ to flood a target system with network requests. The result is the exhaustion of resources rendering the system unusable.
An unauthorized user can gain physical access to the computer and can install different types of devices to compromise the IT security.
Eavesdropping is the act of listening to a private conversation between hosts on a network. Programs such as Carnivore, Naruslnsight & TEMPEST are used to eavesdrop on systems.
Spoofing refers to the masquerade of one person or program as another by falsifying data.
Tampering is an intentional modification of products with the goal of making them harmful to the consumer.
Repudiation describes a situation whereby the authenticity of a signature is being challenged.
Information disclosure refers to a situation where information, thought to be secure is released.
Privilege escalation is when a cyber attacker gains elevated privileges or access to resources that were previously restricted to them.
An exploit is a software tool designed to take advantage of a flaw in an IT system.
Social engineering refers to the deception method used take advantage of the carelessness of trusted individuals. For example, the cyber attacker can send emails by impersonating a bank, a contractor, or a customer to ask for details such as passwords, card numbers etc.
An indirect attack s when a cyber attacker uses a third-party computer to launch an attack, making it far more difficult to track down the attacker.
Firewall Implementation and Configuration
A firewall is security system designed to prevent unauthorized access to or from a secure network, it controls the incoming and outgoing network traffic based on your firewall settings. A firewall acts as a barrier between a trusted, secure internal network and another network that is assumed not to be secure and trusted. Firewalls can be implemented in both hardware and software, or a combination of both. In addition to limiting access to your network, a firewall is also useful for allowing remote access to your network through secure authentication certificates and logins.
CARE’s IT engineers are trained and certified in the area of firewall implementation and configuration. Before installation of firewall, our team will define the level of security necessary for client’s organization by checking with client on the weak links and the areas that are most sensitive and needs protection. The firewall will then be configured according to client’s IT security needs. After the firewall implementation, CARE provides post-installation services such as firewall maintenance to ensure that the firewall will be maintained and upgraded with updates.
A Virtual Private Network (VPN) extends a private network across a public network by creating a secure network connection over a public network such as the Internet or a private network owned by a service provider. The most important thing that clients need to know about VPN is that it secures the computer’s internet connection such that all information passes through is encrypted. Therefore, the information transmitted between the two locations via the encrypted tunnel cannot be read by anyone else because the system contains several elements to secure both the company’s private network and the outside through which the remote user connects through.
VPN setups are especially important as business expands to additional sites or when companies allow the flexibility of permitting employees to connect to the office network from home so that they have access to the resources that they need to be productive. Contact our team of IT security experts to get your secure tunnel VPN setup today to ensure your company’s data is protected from outside threats and that connections from outside office are encrypted.