Cybersecurity Tips for Small Businesses
Andrew Cardwell
Security Leader | CISSP | CISM | CRISC | CCSP | GRC | Cyber | InfoSec | ISO27001 | TISAX | SOC2 | 23k Followers
I have provided information and cyber security services, securing systems and data for large and small organisations. Still, I’ve learned that ensuring cybersecurity in a small business is more challenging in many ways.
While large enterprises have robust security teams and budgets, small businesses don’t.?? They might be lucky to have a dedicated IT professional, and even these days, security and privacy are low on their agenda.
However, implementing even basic security measures can make a huge difference in reducing risk. Based on the latest insights and research around emerging cyber threats and hard-learned lessons from incidents I have responded to, I would like to provide some actionable guidance to small business owners on building a resilient security posture.
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Take a risk-based approach
?It all starts with understanding your critical assets, vulnerabilities, and threats. Assess what data and systems are most vital for your business operations. Everyday crown jewels include customer/financial information, intellectual property, operational technologies, people, and proprietary research. Identify points of ingress and egress like endpoints, networks, cloud services, and third parties. Recognise that insiders may unintentionally expose assets via phishing or social engineering. Also, consider relevant threats like ransomware, business email compromise, DDoS attacks, and data destruction.
With this information, you can focus on protecting critical assets from likely threats. For example, restricting access, separating development/production systems, training staff on secure practices, implementing multi-factor authentication for remote access, ensuring anti-malware tools are up to date, and backing up essential data. Include cyber risks in your overall business risk assessment and policy discussions.
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Promote a security-aware culture
I’ve said it a thousand times: your people are a critical potential vector for attacks and an essential line of defence. Establish security awareness as a regular, ongoing program that empowers staff, from top to bottom, to make sensible security decisions rather than treating it as a check-the-box activity. Educate them with relatable real-world examples of common social engineering tactics to train employees to identify and report suspicious emails or encounters. Reinforce best practices around authentication, data handling, device security, and responsible disclosure through interactive exercises and learning opportunities.
Incentivise and praise secure behaviour by recognising those who demonstrate mindfulness, emphasising how security practices protect customers and the business. Ensure management sets the tone at the top and enables folks to raise issues or mistakes without fear of retribution. Cybersecurity is ultimately about allowing business objectives, never arbitrarily restricting people’s capabilities.
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Consider cloud offerings
?For resource-constrained organisations, cloud solutions allow you to concentrate on your core competencies rather than becoming cybersecurity experts. Cloud service providers offer security at scale with continuous detection and response approaches that are difficult for small teams to replicate. Review security SLAs, configure multi-factor authentication appropriately for access, and monitor your environment for abnormal behaviour.
You still hold accountability and must handle elements like endpoint protection, identity management, backups, and education. Moving responsibility for security-related infrastructure off your plate frees you to focus on business goals. Partnering with seasoned cloud security teams allows small businesses to leverage state-of-the-art practices as threats evolve.
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Know your data and regulate access
?Understanding where your business data resides and who can access it is foundational for minimising risk. Develop a data inventory that tracks structured and unstructured data across endpoints, file servers, databases, email, cloud applications, and other systems. Define classification levels based on sensitivity and criticality.
Establish a role-based access control system based on the least-privilege principle that establishes control of file, folder, and application permissions tailored to user roles. This limits damage if credentials are compromised. Disable guest/anonymous access, implement unique solid passwords and enforce multi-factor authentication for administrator and privileged accounts.
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Regulate data sharing by anonymising/pseudonymising data, ensuring contractual confidentiality agreements, and monitoring data transfers to avoid unauthorised exfiltration. Having visibility into how data is stored, processed, and shared will enable you to configure appropriate controls.
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Rehearse incident response
Even with robust defences, residual risk almost always remains. Prepare by developing an incident response plan that defines roles for detection, containment, remediation, and communication in an actual cyber event. Work with a qualified Managed Security Services Provider if lacking skills internally.
Run tabletop exercises to validate and enhance your methodology, incorporating learnings into updated response plans. Test backups to ensure critical systems and data can be rapidly restored during outages. Cyber insurance can offset recovery costs, notification, legal services, and repetitional harm following incidents.
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Foster partnerships
No one organisation can have complete visibility across today’s threat landscape. Develop trusted relationships early on through cybersecurity information-sharing programmes. These facilitate collaboration between public and private sector partners via intelligence sharing, early warnings, and best practice adoption.
Leverage resources from trade associations, local technology meet ups, university partnerships and government agencies to educate yourself continually. Stay on top of threats relevant to your sector by joining sector-relevant information security groups. Together, we multiply our understanding far beyond any individual perspective.
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Adopt a secure-by-design mindset
I hear it a lot, but it’s rarely done well.?? Rather than bolting on security as an afterthought, bake it into processes from the beginning. This will save you time and money.? When developing new products, services, or business processes, make security a pivotal requirement to analyse upfront rather than playing catch-up post-deployment.
Threat model to methodically evaluate how systems can be compromised and incorporate controls to reduce, detect, and contain inevitable attacks before launch. Adopt a software development life cycle integrating security at all phases - from design, development, and testing to deployment and maintenance.
If applicable, could you train developers on writing secure code to avoid introducing more difficult vulnerabilities to address later? Test for security defects throughout the lifecycle via static analysis, dynamic analysis, pen testing, and bug bounty. Instrument security monitoring capabilities within systems to maintain visibility and rapid response.
Secure engineering practices will minimise the attack surface introduced with each additional system and integration. Avoiding a reactive posture allows you to ship innovations to market faster by engineering more resilient architectures.
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Final words
I hope you have found these tips and discussion points helpful as you advance your organisation’s cybersecurity. This is by no means an exhaustive list, but it reflects some priority areas based on recent real-world experience. Please feel free to reach out if you have additional questions as you continue your security journey. Stay vigilant and remember that adequate security is a collective effort!