Which type of security technology is specifically designed to prevent unauthorized access to information systems?

Firewalls are specifically designed to prevent unauthorized access to information systems by establishing barriers between trusted internal networks and untrusted external networks, such as the internet. They monitor and control incoming and outgoing network traffic based on predetermined security rules, effectively allowing or blocking data packets based on various criteria.

This capability is crucial for protecting sensitive information from cyber threats and attacks, as it can prevent unauthorized users or malicious software from gaining access to internal networks and systems. Firewalls can be implemented in both hardware and software forms, adding layers of security that are essential for protecting an organization’s data integrity and confidentiality.

While antivirus software is vital for detecting and mitigating malware threats, it does not primarily function to control access permissions to the system. Surveillance cameras play a critical role in physical security but do not contribute to cybersecurity directly. Data backup solutions focus on ensuring data recovery rather than access prevention. Therefore, firewalls stand out as the technology specifically intended to manage and restrict access to information systems.