Why Your Security Team Should Be in Control of Modifying or Creating Firewall Rules

Firewall rules are essential components of network security. They are responsible for ensuring that traffic flows in and out of the network only through authorized ports and protocols. As such, the creation and modification of firewall rules should be handled by the security division of an organization rather than the network or infrastructure team. Here's why:

Expertise

Security personnel have the necessary expertise and knowledge to create and modify firewall rules accurately. They understand the potential risks associated with different types of traffic and can create rules that block unauthorized traffic while allowing legitimate traffic to pass through. On the other hand, network and infrastructure teams may not have the same level of security knowledge and could potentially create firewall rules that inadvertently leave the network vulnerable.

Compliance

Regulatory compliance is a critical consideration for many organizations. Security personnel are well-versed in the regulatory requirements for their industry and can ensure that firewall rules comply with these regulations. Network or infrastructure teams may not have the same level of understanding of regulatory requirements, and this could lead to non-compliance.

Accountability

In the event of a security breach or incident, it is essential to have clear accountability for the creation and modification of firewall rules. If the network or infrastructure team is responsible for creating and modifying firewall rules, it may be challenging to determine who is accountable for any security incidents. On the other hand, if the security division is responsible, there is a clear chain of accountability.

Proactive Security and Risk Management

Having the security division in control of creating and modifying firewall rules ensures a more proactive approach to security. Security personnel are constantly monitoring the network for potential vulnerabilities and can modify firewall rules accordingly. This approach reduces the likelihood of a security breach and ensures that the network is adequately protected.

Furthermore, security teams tend to be more restrictive when creating rules because they understand the risk of overexposure and the potential consequences of an unauthorized access. As such, they are better equipped to assess the risk associated with different types of traffic and can create rules that minimize the likelihood of a security breach.

In conclusion, the creation and modification of firewall rules should be the responsibility of the security division of an organization. They have the necessary expertise, ensure compliance, provide clear accountability, and take a proactive approach to security. By entrusting firewall rules to the security division, organizations can ensure that their networks are adequately protected against potential threats.