Security 2023

As cyber threats continue to increase, businesses must take proactive steps to protect their sensitive data and assets from cybercriminals. Threats to data security are persistent and come from many different places.

Today's offices are digitally sophisticated. Just about every activity relies on some type of technology and data sharing. Hackers can breach these systems from several entry points, including computers, smartphones, cloud applications, and network infrastructure.

One approach that can help organisations fight these intrusions is threat modelling. Threat modelling is a process used in cybersecurity that involves identifying potential threats and vulnerabilities to an organisation's assets and systems. It helps businesses prioritise their risk management and mitigation strategies to reduce the risk of costly cyber incidents.

Steps to conduct a threat model

Step 1: Identify assets that need protection

The first step is to identify assets most critical to the business, including sensitive data, intellectual property, and financial information. Do not forget to include phishing-related assets such as company email accounts, as business email compromise is a fast-growing attack vector.

Step 2: Identify potential threats

The next step is to identify potential threats to these assets. Common threats include cyber-attacks such as phishing, ransomware, malware, and social engineering. Other categories include physical breaches or insider threats where employees or vendors have access to sensitive information.

Threats are not always malicious. Human error causes significant data breaches, so ensure awareness of mistake-related threats such as:

  • The use of weak passwords
  • Unclear cloud use policies
  • Lack of employee training
  • Poor or non-existent BYOD policies

Step 3: Assess likelihood and impact

Once you have identified potential threats, assess the likelihood and impact of each one. Businesses must understand how likely each threat is to occur and its potential impact on operations, reputation, and financial stability. This helps rank risk management and mitigation strategies.

Base threat likelihood on current cybersecurity statistics and a thorough vulnerability assessment by a trusted third-party IT service provider. Internal-only assessments risk missing critical vulnerabilities.

Step 4: Prioritise risk management strategies

Prioritise risk management strategies based on the likelihood and impact of each potential threat. Most businesses cannot tackle everything at once due to time and cost constraints, so rank solutions by their cybersecurity impact.

Common strategies to consider include implementing:

  • Access controls
  • Firewalls
  • Intrusion detection systems
  • Employee training and awareness programmes
  • Endpoint device management

Businesses must determine which strategies are most cost-effective and align with their business goals.

Step 5: Continuously review and update the model

Threat modelling is not a one-time process. Cyber threats constantly evolve, so businesses must continuously review and update their threat models to ensure security measures remain effective and aligned with business objectives.

Benefits of threat modelling for businesses

Improved understanding of threats and vulnerabilities

Threat modelling helps businesses gain a better understanding of specific threats and uncovers vulnerabilities that could impact their assets. It identifies gaps in security measures and helps uncover risk management strategies.

Cost-effective risk management

Addressing risk management based on likelihood and impact reduces costs and makes the most of your security spend. This ensures businesses divide resources effectively and efficiently.

Business alignment

Threat modelling ensures security measures align with business objectives, reducing potential impact on business operations and helping coordinate security, goals, and operations.

Reduced risk of cyber incidents

By implementing targeted risk management strategies, businesses can reduce the likelihood and impact of cybersecurity incidents, protecting their assets and reducing negative consequences of security breaches.