Information Technology Security Respond to a Breach
A breach is an intrusion of a computer system that results in unauthorized access to confidential information. Information security systems are designed to prevent this by detecting and responding to attacks on networks, servers and computers. In the event of a breach, information technology security teams must quickly isolate the affected systems and accounts, take steps to prevent future attacks, and work with public relations staff to notify customers whose data has been exposed.
A security incident typically preempts a breach, although there are cases in which a breach occurs even when a malicious actor has not yet gained access to company information or systems. A typical incident involves a lapse in security protocols or an insecure computer network that allows attackers to gain unauthorized access to sensitive information technology security and services. For example, an unsecured website may allow cybercriminals to steal passwords or other security details. A hacker that obtains the password for a company’s database then uses it to access and alter data. This type of activity can be detected by monitoring systems for anomalous behavior, logging unauthorized access and blocking attempts to access restricted areas of the network.
Having the right set of security tools in place can help to avoid a breach. These include data loss prevention (DLP) strategies that track the movement of files and applications, and endpoint detection and response (EDR) solutions that monitor all software activity on individual devices for malware, ransomware and other signs of intrusions.
How Does Information Technology Security Respond to a Breach?
These tools also detect and block suspicious activity at the perimeter of a network and divide larger networks into smaller subnetworks to stop hackers from penetrating deeper into an organization’s systems. Additionally, IT teams should deploy the principle of least privilege to limit the impact of a breach by ensuring that all users and software are allotted the lowest set of permissions. This also ensures that a compromised user account or piece of software cannot damage valuable assets. To further reduce the risk of a breach, IT should implement password management programs that enforce two-factor authentication and force users to change their passwords periodically to prevent hackers from using stolen credentials.
The next step in responding to a breach is to understand what information has been stolen, and how much damage it has caused. Efficient organizations will usually back up important information technology security to external or isolated servers, so that the data can be retrieved in the event of a breach. They will also have a plan for contacting federal or state agencies if the breach is a matter of national security.
Companies should develop an information security policy to ensure that employees follow all necessary security protocols, and update the policies based on company changes, new threats and conclusions drawn from past breaches. They should also establish and implement an incident response plan, including procedures for tracing, tracking and reporting incidents. They should also determine their legal responsibilities for data protection, breach notification and response to a breach.