Supply Chain Attacks: The Hidden Risk Threatening Your Business

Modern businesses rely on a complex web of vendors, software providers, cloud services and third-party tools to operate efficiently. But every connection in your supply chain can also become a potential entry point for cyber criminals.

Supply chain attacks have rapidly emerged as one of the most dangerous cyber threats facing organizations today because attackers no longer need to breach you directly; they can infiltrate one of your trusted partners instead.

Discover what supply chain attacks are, why they are becoming such a popular threat and what your business can do to protect against them.

Read: How Technology Transforms Transportation in the Supply Chain

What Are Supply Chain Attacks?

A supply chain attack occurs when cyber criminals compromise a third-party vendor, supplier, provider or service that your organization depends on. Traditional cybersecurity relies heavily on reputation and trust. Supply chain attacks weaponize this trust; when an attack payload is wrapped inside a legitimate, pre-approved application update, it bypasses standard security controls.

Cyber criminals have realized that instead of trying to break through your hardened perimeter, it’s far more efficient to compromise a trusted vendor that already has access. By targeting the weakest link in the supply chain, they can gain access to multiple downstream businesses simultaneously. This also means any business, no matter the size or industry, is at risk.

These attacks can involve:

• Compromised software updates
• Infected hardware components
• Vulnerable cloud providers
• Third-party IT vendors
• Open-source software dependencies
• Compromised login credentials

Why Supply Chain Attacks Are Surging

Businesses are more connected than ever before, often relying on dozens, if not hundreds, of tools and vendors. Cloud platforms, remote work tools, software-as-a-service (SaaS) applications and outsourced IT services improve efficiency, but they also expand the attack surface dramatically. In fact, 30% of breaches in 2025 involved a third party, which was double from the previous year.

Cyber criminals favor supply chain attacks because they offer:

• “More for the price of one”: One successful breach can impact hundreds or thousands of businesses simultaneously.
• Easier entry points: Attackers often target smaller vendors with weaker security controls rather than highly protected enterprises.
• Trusted access: Malicious software or credentials from a trusted vendor are less likely to trigger suspicion.
• Long-term persistence: Supply chain attacks can remain undetected for months while attackers quietly steal data or move laterally through systems.

Real-World Examples

Several high-profile attacks have demonstrated the devastating impact these breaches can have:

• SolarWinds: One of the most infamous supply chain attacks occurred in 2020 when hackers compromised a routine software update for SolarWinds, a widely used IT management platform. Thousands of organizations, including government agencies and Fortune 500 companies, unknowingly installed malicious updates, giving attackers silent access for months before detection.
• MOVEit transfer breach: The MOVEit file transfer vulnerability in 2023 affected organizations worldwide after attackers exploited a zero-day weakness in widely used software to steal sensitive data from multiple industries, including government, healthcare and financial.
• Kaseya VSA attack: Cyber criminals targeted Kaseya’s remote management software in 2021, which allowed ransomware to spread through managed service providers (MSPs) into numerous customer environments, allowing them to extort $70 million.

How to Defend Against Supply Chain Attacks

Although no organization can eliminate risk entirely, implementing proactive cybersecurity strategies can significantly reduce exposure and protect your business.

• Vet vendors carefully: Evaluate the cybersecurity practices of all third-party vendors and suppliers before granting access to your systems or data. Ensure compliance with security standards.
• Limit third-party access: Vendors should only have access to the systems and data necessary for their role. Implement least-privilege access controls wherever possible.
• Adopt a zero-trust mindset: The zero-trust mindset states “never trust, always verify.” Never assume a user, device or vendor is inherently trustworthy. Everything should be continuously verified before access is granted.
• Keep software updated: Promptly patch vulnerabilities in all systems, applications and third-party tools.
• Implement multi-factor authentication (MFA): MFA helps prevent attackers from exploiting stolen vendor credentials by requiring a second verification.
• Monitor vendor activity: Continuously monitor third-party connections, login activity and network behavior for unusual patterns and gaps.
• Develop an incident response plan (IRP): Your organization should have a clear response strategy for vendor-related cybersecurity incidents.

Work with a Proactive IT Partner Like Thriveon

Many businesses lack the internal resources to monitor evolving threats continuously. A proactive IT and cybersecurity partner like Thriveon can help assess vendor risk, strengthen defenses and respond quickly to incidents.

At Thriveon, we help organizations strengthen their cybersecurity defenses, reduce operational risk and build resilient IT strategies. Our Fractional CIO can help ensure you’re protected before an attack, not just after one.

Request a consultation now for more information.