Why Manufacturing Is a Prime Target for Cyberattacks
The manufacturing industry is attractive to cyber attacks because disruption has fast effects on their operations. The
higher the cost of downtime, the more pressure there is to restore operations quickly. That makes
ransomware
specially effective.
Manufacturing companies also hold assets attackers want, namely IP, supplier and customer records, production
schedules, and sensitive communications. In many cases, they also operate mixed environments with legacy systems,
limited visibility, and distributed vendor access, which can widen exposure.
Common attacker motivations include extortion, data theft, espionage, and
supply chain disruption. Some of their usual tactics cover:
- Ransomware attacks that encrypt systems and disrupt output
-
Phishing
that steals credentials or delivers
malware
- Social engineering that exploits urgency, trust, or authority
- Supply chain attacks that abuse trusted third parties or partner communications
Top Cybersecurity Challenges Facing Manufacturers
Manufacturers face technical issues that look very different from a typical office network. This is because their
environments combine physical operations, connected systems, and time-sensitive workflows.
Legacy Systems and Limited Visibility
Many manufacturers still depend on older software, aging assets, and OT devices that are harder to patch or upgrade
than standard endpoints. Some facilities also lack full visibility into what is connected across the environment,
which makes it more difficult to identify vulnerabilities and respond quickly when problems appear.
IT/OT Convergence
As office systems and production systems become more connected for monitoring, analytics, and remote support, the line
between IT and OT grows thinner. While this improves efficiency, it also creates more paths for attackers to move
through the environment. If segmentation is weak, a compromise in one area can spread into more critical systems.
Human and Organizational Gaps
Plant-floor employees, engineers, contractors, and outside vendors may not always receive
security training
that matches their roles and daily responsibilities. That can increase the likelihood of insider risks like
phishing, unsafe file sharing, and accidental exposure of sensitive data.
Key Threats in Manufacturing Cybersecurity Today
Manufacturers face a small group of threats that cause a disproportionate amount of damage because they target both
people and operations.
Phishing
Phishing
works because it exploits trust and urgency. A message that looks like a supplier notice, shipping update, invoice, or
internal approval can trick users into clicking, sharing credentials, or opening a malicious file.
Business Email Compromise
BEC is more targeted than standard phishing. Instead of relying on mass email tactics, it often uses impersonation,
hijacked accounts, or carefully timed messages to trick employees into approving wire transfers, changing supplier
payment details, or sharing sensitive information.
Ransomware
Ransomware remains especially dangerous because it can halt production, delay shipments, and trigger costly recovery
efforts. Manufacturing “felt the brunt” of
ransomware attacks due to the sector’s low tolerance for downtime keeps it attractive to attackers.
Best Practices for Strengthening Manufacturing Cybersecurity
Manufacturers need layered security. This starts with strong defenses across email, collaboration tools, user
behavior, and critical systems. Security strategy should also align with business continuity goals, since resilience
in manufacturing depends on keeping operations available under pressure.
Human risk management is a major part of that.
Security awareness training should be tailored to manufacturing roles, including plant staff, engineering teams, procurement, and external
contractors. Employees should know what suspicious supplier messages look like, how to report issues, and how to
handle urgent requests safely.
Continuous monitoring also matters. Watching for unusual user behavior, risky file movement, and insider threat
indicators can help teams respond earlier and reduce exposure before an incident spreads.
How to Prevent Cybersecurity Threats in Manufacturing
A practical prevention strategy should include:
- Clear security policies and training to reduce human error and strengthen day-to-day decision-making
-
Regular updates for connected devices and firmware to reduce exploitable weaknesses in IoT and
production-connected systems
-
Segmentation between IT and OT networks to limit lateral movement and better protect industrial control system
assets
- Advanced threat detection and continuous monitoring for faster visibility and response
-
Secure backups and tested recovery plans so a
ransomware attack does not become a full operational crisis
These steps support both prevention and cyber resilience. They also make incident response more realistic when an
attack does happen.
How Mimecast Supports Manufacturers for Cybersecurity
Mimecast helps manufacturers reduce human-driven risk across email, collaboration, and data movement. These areas are
where phishing, impersonation, and unsafe file sharing often create the first opening for an attack.
Its capabilities help detect and block suspicious messages, malicious links, harmful attachments, and impersonation
attempts before they reach users. AI-driven analysis and automated response also help security teams identify threats
faster and reduce exposure.
Mimecast also supports better visibility into risky user behavior and sensitive data movement. This helps manufacturers catch
insider risk earlier, reduce accidental
data exposure, and strengthen security without adding unnecessary friction to daily operations.
Strengthening Manufacturing Cybersecurity for Resilient Operations
For modern manufacturers, cybersecurity failures can affect far more than IT. They can disrupt uptime, create safety
concerns, expose sensitive information, strain compliance efforts, and put revenue at risk.
That is why cybersecurity is now a core manufacturing concern. It supports resilient operations, safer digital
workflows, and stronger protection for the systems and people that keep production moving.
With the right strategy and support, manufacturers can close critical gaps. Mimecast can help strengthen the email,
collaboration, and human-risk defenses that support a more resilient operation.
