Top 5 Software Supply Chain Security Threats in 2025

The global annual cost of software supply chain attacks is projected to reach $138 billion in 2031.

As Organizations face increasingly sophisticated threats while simultaneously gaining powerful new tools to combat them, five critical threats stand out for their frequency and potential to cause catastrophic business disruption. 

1. Ransomware and Supply Chain Attacks 
2. CI/CD Pipeline Attacks 
3. AI-Specific Threats
4. Embedded Systems & IoT Device Vulnerabilities 
5. Legacy System Exploitation 

Let's take a closer look at these threats.

Top 5 Threats to Watch

1. Ransomware and Supply Chain Attacks

Ransomware remains a highly profitable and disruptive method of attack, but modern ransomware attacks have evolved far beyond simple file encryption. Threat actors now leverage supply chain vulnerabilities to compromise multiple organizations simultaneously, maximizing their impact and ransom demands. 

Mitigation Strategy

• Maintain comprehensive backup systems with offline copies
• Implement zero-trust architecture principles
• Conduct regular vendor security assessments
• Deploy advanced endpoint protection
• Develop and regularly test incident response plans
• Enforce strict vendor access policies and controls

Quick Win: Enable MFA across all systems and implement network segmentation to contain potential breaches. 

"Modern ransomware is less about holding your data hostage and more about exploiting your entire digital ecosystem. Your security chain is only as strong as your weakest vendor or employee habits, and attackers know it's easier to slip through the back door than kick down the front. When they strike, the difference between disaster and recovery isn't luck - it's preparation."

2. CI/CD Pipeline Attacks

Continuous Integration/Continuous Deployment (CI/CD) pipelines are prime targets for attackers, as they offer the potential to inject malicious code into legitimate software updates at scale.

In 2023 CircleCI experienced a breach where attackers compromised an engineer’s laptop to steal authentication tokens, allowing them access to customer environments and inject malicious code. 

Additionally, in March of 2024, Check Point reported that they had discovered 500 malicious typosquatted PyPi packages. Use of these typosquatted packages by developers introduced unwanted functionality into the application, resulting in project compromise.

Mitigation Strategy

• Implement "shift left" security practices, integrating security from the earliest stages of development
• Automate SBOM generation and vulnerability scanning within pipelines
• Enforce strict access controls and authentication for pipeline access
• Maintain detailed audit logs of all pipeline activities
• Regularly validate the integrity of build and deployment processes
• Use signed commits and verified builds
• Verify upstream libraries and packages for typosquatting, ownership changes, and large revisions

Quick Win: Enable branch protection rules and require code review before merging.

"Your CI/CD pipeline is the digital assembly line for your software factory. Just as you wouldn't let strangers wander your manufacturing floor, don't let your build process become an open house for malicious code. Remember, convenience without security checks is just a breach waiting to happen."

3. AI-Specific Threats

As AI adoption grows, attackers are finding new ways to exploit vulnerabilities in AI systems. Both public and private AI models face unique risks—public models can be poisoned or manipulated due to their open accessibility, while private models may be targeted for intellectual property (IP) theft or proprietary data extraction. Key threats include:

• Data poisoning attacks that corrupt machine learning models by injecting malicious training data
• Adversarial attacks designed to manipulate AI outputs by introducing subtle but intentional input modifications
• Novel exploit paths that leverage AI’s tendency to generalize, which can be manipulated to bypass security controls
• Model theft and IP leakage, where attackers attempt to extract proprietary insights or replicate private AI models

Security researchers tricked Microsoft’s Bing AI into revealing its internal system prompts and behaviors. This demonstrates how adversarial manipulation could be used to extract sensitive information and alter AI behavior in unintended ways.

Mitigation Strategy

• Implement robust testing protocols for AI models
• Validate training data integrity and sources
• Monitor AI system outputs for anomalies
• Maintain separate environments for AI model training and deployment
• Regular retraining and validation of AI models
• Implement fallback mechanisms for AI system failures
• Establish human oversight procedures

Quick Win: Implement automated anomaly detection monitoring and ensure all AI models have human review checkpoints before deployment to production. Review and validate any AI output.

"AI is like having a brilliant but gullible new employee - impressive capabilities when trained properly, but dangerously naive without guardrails. Your models are only as trustworthy as their training data and the security measures protecting them. Remember that adversaries don't need to break your AI; they just need to whisper the right words to make it break itself."

4. Embedded Systems and IoT Device Vulnerabilities

The explosion of IoT devices in industrial contexts has significantly widened the attack surface. These connected sensors and controllers often introduce potential entry points that traditional IT security measures don't adequately cover, making them a popular choice for attackers to exploit.

The Mirai botnet attack, which exploited vulnerabilities in IoT devices with default or weak credentials. The attack infected thousands of connected devices—such as cameras and routers—turning them into a massive botnet that launched some of the largest DDoS attacks in history. While the initial Mirai exploitation is several years old, we continue to see more modern derivatives, even today, using similar code and exploit techniques.

Mitigation Strategy

• Implement specialized IoT/OT security solutions designed for industrial environments
• Maintain a comprehensive inventory of all connected devices
• Regularly audit device configurations and security settings
• Segment IoT devices onto separate networks
• Deploy automated monitoring tools to detect unusual device behavior
• Ensure devices receive regular security updates and patches

Quick Win: Create a comprehensive device inventory and implement basic network segmentation to isolate IoT devices from critical business systems.

"Your IoT devices are like talkative party guests—convenient to have around but sharing far more information than you realize. While you're focused on securing the front door with sophisticated locks, attackers are slipping in through thousands of IoT windows left carelessly open. Remember, in a connected ecosystem, your security is only as strong as your weakest, smallest, most forgotten device."

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5. Legacy Software Exploitation

Older systems remain a prime target for attackers, primarily because they rarely receive patches or updates. These systems often harbor known weaknesses that remain open for exploitation, making them an attractive entry point for malicious actors. This issue is particularly critical in IoT and embedded device ecosystems, where legacy software is often deeply integrated into products with long lifecycles. Many of these systems rely on outdated libraries and components that are difficult to patch, creating security blind spots.

Mitigation Strategy

• Conduct regular vulnerability assessments of legacy systems
• Implement compensating controls when updates aren't possible
• Use network segmentation to isolate legacy systems
• Deploy additional monitoring and access controls around legacy systems
• Develop and maintain detailed documentation of legacy system dependencies
• Create a modernization roadmap for critical legacy systems

Quick Win: Deploy application firewalls and implement strict access controls around legacy systems while documenting their dependencies and connections.

"Legacy systems are like vintage cars—charming to have around but maintenance is a nightmare, and you can't find replacement parts. The difference? When your vintage software breaks down, it doesn't just leave you stranded—it invites everyone else to take your data for a joyride. Remember, what was secure in 2005 is practically an engraved invitation to attackers in 2025."

Conclusion

These five threats we've discussed aren't just theoretical problems - they're real challenges that organizations are grappling with right now. The interconnected nature of modern software development means that a single vulnerability can have cascading effects across entire supply chains, making robust security practices more crucial than ever.

The good news? We're not fighting these battles empty-handed. AI-powered security tools are giving us capabilities that would have seemed like science fiction just a few years ago, helping us spot and respond to threats faster than ever. Of course, there's a bit of irony here - while AI is becoming one of our strongest defenders, it's also introducing some new security headaches we need to stay on top of.

To really tackle these threats effectively, you need to cover all your bases and implement:

• Regular security assessments and updates
• Comprehensive monitoring and detection systems
• Strong access controls and authentication measures
• Well-documented incident response procedures
• Ongoing staff training and security awareness

As the projected cost of supply chain attacks approaches $138 billion by 2031, organizations that invest in addressing these threats today will be better positioned to protect their assets, maintain customer trust, and ensure business continuity in an increasingly complex digital ecosystem. Remember, it's not about having a perfect security setup - it's about remaining vigilant, adaptable, and committed to continuous security improvement as new threats emerge and existing ones evolve.

Book a Demo to discover how Finite State can help you mitigate these threats before they become breaches.