Small and mid-sized businesses (SMBs) may not operate on the same scale as multinational corporations, but they remain highly reliant on suppliers and partners for daily operations. This interdependence makes them vulnerable to cyber threats that target supply chains. A single compromised link can disrupt operations, compromise sensitive data, and affect business continuity. While SMBs may believe they are too small to be targeted, they can often serve as entry points for larger attacks on ecosystems they are connected to.

Ransomware poses one of the most serious threats to supply chain security. Historically, such attacks focused on individual organizations. Today, attackers increasingly target companies with extensive partner networks to maximize disruption.
Several vulnerabilities make SMB supply chains susceptible to these attacks. One is the reliance on third-party suppliers—ranging from software vendors to HVAC service providers—each with varying levels of cyber security preparedness. Another weak point is the increasing use of cloud services, which, while offering flexibility and efficiency, can reduce visibility and increase exposure. Further, businesses often need to grant digital or physical access to partners, creating additional security gaps. Unfortunately, SMBs typically have limited control over their partners’ cyber hygiene, relying mostly on contractual terms and trust.
The National Institute of Standards and Technology (NIST) has outlined a wide range of supply chain risks. These include third-party access to systems, poor practices among lower-tier suppliers, compromised hardware or software, and the use of counterfeit or malware-infected components. The complexity of these threats underlines the growing demand for robust supply chain security solutions. In fact, global market projections estimate growth from $903 million in 2021 to $1.22 billion by 2026, reflecting increasing awareness.
To manage supply chain cyber risks effectively, SMBs must treat the issue as more than just an IT concern. According to NIST, addressing cyber supply chain risks requires coordination across functions such as sourcing, vendor management, and logistics. Organizations should operate under the assumption that breaches are inevitable and focus on minimizing damage, preventing exploitation, and ensuring recovery.
Its advised asking critical questions about vendors, including their vulnerability management processes, product security measures, and employee screening practices. Other best practices include embedding cybersecurity clauses in contracts, conducting joint assessments with partners, securing source code for software, and tightly controlling third-party access. These actions can significantly reduce risk exposure.
Given limited in-house resources, many SMBs may benefit from partnering with managed security service providers (MSSPs). These experts can help implement effective security measures across the supply chain, ensuring that people, processes, and technologies work in harmony to protect critical assets and maintain business resilience.