Cybersecurity as a Competitive Advantage: Why Customers Are Asking

When the Questionnaire Comes Before the Contract

You probably know the scenario: a potential customer shows interest, conversations go well, the proposal fits. And then the email arrives with the subject line "Security Questionnaire" or "Vendor Security Assessment." Twenty, thirty, sometimes fifty questions about your IT security, your data protection, your incident response processes.

Five years ago, this was the exception. Today, it's standard in many industries. And for quite a few organizations, it's the moment they realize that cybersecurity is no longer just an internal topic. It's become a business topic — one that directly influences whether you get the contract or not.

This shift isn't accidental. It has concrete drivers, and understanding them enables you to strategically use cybersecurity as a differentiator rather than just reactively filling out questionnaires.

Why More and More Customers Demand Evidence

The increased requirements for supplier cybersecurity have several causes that reinforce each other.

Regulatory Pressure: NIS2 and the Supply Chain

NIS2 has been effective law in Germany since December 2025. One of its central requirements: affected organizations must assess and manage the cybersecurity of their supply chain. Article 21 of the directive explicitly names the "security of the supply chain, including security-related aspects of the relationships between each entity and its direct suppliers or service providers."

What does this mean in practice? If your customer falls under NIS2 — and with an estimated 30,000 companies in Germany, the probability is high — they are legally obligated to evaluate your security. They're not doing it out of curiosity but because they face personal liability for violations. Executives of NIS2-obligated companies can face fines of up to EUR 10 million or 2% of global annual revenue.

This regulatory pressure works in a cascading manner. Large enterprises subject to NIS2 pass requirements to their suppliers. These suppliers pass them to their subcontractors. This is how requirements reach companies that aren't directly subject to NIS2 themselves.

The Supply Chain Due Diligence Act

Parallel to NIS2, the German Supply Chain Due Diligence Act (LkSG) has been in effect since 2024 for companies with 1,000+ employees. While it primarily focuses on human rights and environmental standards, due diligence obligations increasingly extend to digital risks as well. The EU's Corporate Sustainability Due Diligence Directive (CSDDD) will further reinforce this trend.

Insurance Requirements

Cyber insurance policies have become significantly more expensive and restrictive in recent years. Insurers now impose detailed requirements on their customers' IT security: MFA is nearly universally mandatory, backup concepts are reviewed, and patch management processes are scrutinized. Companies that don't meet these requirements either can't obtain a policy or pay significantly higher premiums.

This effect transfers to business relationships. If your customer has a cyber insurance policy that's supposed to cover supplier risks as well, the insurer will ask whether key suppliers meet minimum security standards.

Experience with Real Incidents

The most pragmatic driver: many organizations have had painful experiences themselves. A ransomware attack on a supplier that brings their own production to a standstill. A data breach at an IT service provider that exposes their own customer data. A compromised cloud provider that's unreachable for weeks.

These experiences permanently change procurement practices. Anyone who has experienced how an insecure supplier becomes their own problem asks more carefully next time.

Security as a Sales Argument: How It Works

Using cybersecurity as a competitive advantage doesn't mean selling through fear scenarios or printing glossy brochures about your SOC. It means having convincing answers in the moments when security becomes relevant. And these moments come more often than you think.

In Tenders and RFPs

In formal tenders, especially in the public sector and with large enterprises, security requirements are now a fixed part of the evaluation criteria. Typical RFP requirements:

• ISO 27001 certification or equivalent evidence
• Documented incident response procedure
• Regular penetration tests or vulnerability scans
• Encryption of data in transit and at rest
• Evidence of employee training
• Backup and disaster recovery concept
• Contractual security assurances (DPA, SLA)

If you can demonstrably meet these points, you have a structural advantage over competitors who struggle with the security questions. This is especially true when security is defined as a knockout criterion: those who don't meet minimum requirements are eliminated before price even plays a role.

In Sales Conversations

Outside of formal tenders, security plays a growing role in sales as well. The decisive moment is often not the initial presentation but the due diligence phase — when the potential customer brings in their procurement team, their IT, or their legal department.

If you can proactively present a security package at this stage — a current ISO 27001 certificate, a summary of your security measures, and pre-filled answers to common security questionnaires — you significantly accelerate the sales process. Instead of spending weeks answering follow-up questions, you deliver the answers all at once.

Sales professionals consistently report that an ISO 27001 certificate or a well-structured security factsheet is the moment the conversation dynamic changes. The customer notices: this organization has done their homework. That builds trust that extends beyond the pure security question. If you're professionally set up in security, you probably are in other areas too.

At Contract Renewals

Existing customers increasingly impose security requirements at contract renewal. What wasn't a topic when the contract was signed three years ago now becomes a condition for continuing the relationship. Especially customers who themselves have fallen under NIS2 or other regulatory requirements must systematically reassess their supplier base.

Those who can't keep up risk losing long-term customer relationships. And losing an existing customer is known to be significantly more expensive than acquiring a new one.

Which Certifications and Evidence Build Trust

Not every piece of evidence carries the same weight. The choice of the right certification depends on your industry, your customers, and your budget.

ISO 27001: The International Gold Standard

ISO 27001 is the globally recognized standard for information security management systems. A certification is accepted as credible evidence by virtually every customer and client. It covers the entire spectrum of information security: organization, processes, technology, personnel, physical security.

For SMEs, ISO 27001 is often the most efficient path because it simultaneously satisfies a large portion of NIS2 requirements, is internationally recognized, and applies across industries. Certification costs for a company with 50 to 150 employees range from EUR 30,000 to 80,000 in the first year, though tool costs with solutions like ISMS Lite ab 500 Euro pro Jahr oder als Einmalkauf für 2.500 Euro are significantly lower than with enterprise GRC platforms. The investment often amortizes quickly through won contracts.

TISAX: Mandatory in the Automotive Industry

If you're a supplier to the automotive industry, you can hardly avoid TISAX (Trusted Information Security Assessment Exchange). TISAX is based on the VDA ISA (Information Security Assessment), which in turn is closely aligned with ISO 27001 but adds industry-specific requirements such as prototype protection and connection to production systems.

The advantage of TISAX: results are shared via a central platform. Once you've been assessed, all participating OEMs and Tier-1 suppliers can view your results without you having to undergo a separate audit for each customer.

SOC 2: Relevant for SaaS and Cloud Services

SOC 2 (System and Organization Controls 2) is an American standard that's particularly relevant for software and cloud providers. If you have international customers, especially from the Anglo-Saxon world, they frequently ask for a SOC 2 report. The standard examines the areas of security, availability, processing integrity, confidentiality, and privacy.

SOC 2 and ISO 27001 don't mutually exclude each other. Many organizations have both because different customer groups expect different evidence.

Cyber Essentials and BSI-Grundschutz

For organizations that don't pursue a full ISO 27001 certification, there are leaner alternatives. The British Cyber Essentials Scheme is a low-threshold entry point. BSI-Grundschutz offers a pragmatic framework with the IT-Grundschutz profile for SMEs, tailored to the German mid-market.

These certifications don't have the same international reach as ISO 27001 but can be sufficient in certain contexts — especially when your customers are primarily from the DACH region.

The Minimum: Structured Self-Assessment

If budget or time for a formal certification isn't available, a structured self-assessment is better than nothing. Create a security factsheet summarizing the most important measures: how you manage access, how you organize backups, what happens during an incident, what training you conduct. Supplement it with concrete evidence — screenshots of the MFA configuration, the date of the last penetration test, or the agenda of the last awareness training.

Such a self-assessment doesn't replace a certificate, but it shows that you take the topic seriously and approach it systematically. For many customer questionnaires, this is sufficient as a starting point.

Practical Examples from Various Industries

How cybersecurity functions as a competitive advantage differs considerably by industry. Some examples:

IT Service Providers and MSPs

For Managed Service Providers, the security question is existential. You manage your customers' IT infrastructure, have admin access to their systems, and are an attractive target for attackers. A compromised MSP is every CISO's nightmare.

ISO 27001 is now almost a market access requirement for MSPs. Customers who themselves fall under NIS2 must demonstrably evaluate the security of their IT service providers. Without certification, you won't even make the longlist in many tenders. MSPs that invested early in their security report significantly shorter sales cycles and higher customer retention.

Mechanical Engineering and Manufacturing

In the manufacturing industry, cybersecurity is gaining importance as production facilities become increasingly networked. OT security (Operational Technology) is a topic that many manufacturers only discover through their customers' requirements.

A mid-market mechanical engineering company that can demonstrate it secures its production systems, controls remote maintenance access, and has an emergency plan for cyberattacks positions itself clearly ahead of competitors who ignore the topic. Automotive suppliers experience this daily: no TISAX label, no business with OEMs.

Software Development and SaaS

For software manufacturers and SaaS providers, security is part of the product promise. Customers entrust you with their data, and they expect you to handle that data responsibly. A data breach doesn't just destroy one customer relationship — it destroys your brand.

ISO 27001, SOC 2, or both together are increasingly standard requirements in this segment. Especially with enterprise customers, the security review is an integral part of the procurement process. Startups that invest early in their security architecture avoid expensive retrofitting later and can serve enterprise customers that would otherwise be out of reach for smaller providers.

Consulting and Professional Services

Consulting firms, auditors, law firms, and other professional services firms also feel the pressure. They work with confidential client information, have access to sensitive business data, and are increasingly digitally connected. Clients of large consulting firms now routinely inquire about their consultants' information security.

For smaller consulting boutiques, an ISO 27001 certificate can be the door opener to engagements that were previously reserved for large firms. It signals: we're small, but we take security just as seriously as the big players.

Healthcare and Medical Technology

In healthcare, data protection and cybersecurity converge particularly intensely. Patient data is among the most sensitive information of all. Hospitals selecting IT service providers or medical technology manufacturers impose high demands on information security.

For medical technology companies, additional regulatory requirements such as the MDR (Medical Device Regulation) and the Cyber Resilience Act add explicit security-by-design requirements. Those who proactively meet these requirements differentiate themselves in a market that is increasingly regulated.

The Security Questionnaire: From Problem to Opportunity

Almost every company working in B2B knows security questionnaires. They come from customers, tender agencies, and procurement departments. And they usually arrive at the most inconvenient moment: when sales is about to close and the questionnaire needs to be returned within a week.

Most companies treat these questionnaires as a tedious obligation. They're hastily assembled, half-filled out, or trigger internal panic because nobody knows the answers. But security questionnaires are an opportunity to position yourself.

The key is preparation. Create a master document once that contains answers to the 50 most common security questions. The questions repeat — most questionnaires are based on the same standards: ISO 27001, NIST CSF, CIS Controls, or industry-specific requirements. Once you have this master document, you can answer every new questionnaire in hours instead of days.

Typical questions you should be prepared for:

• Do you have a documented ISMS?
• Do you conduct regular risk assessments?
• How do you manage access to your systems?
• Do you have an incident response plan?
• How often do you conduct penetration tests?
• How do you train your employees in cybersecurity?
• What encryption standards do you use?
• How do you ensure the security of your supply chain?
• Do you have a cyber insurance policy?
• How do you handle data deletion and disposal?

If you have a well-founded, verifiable answer to each of these questions, you're faster than the competition and more convincing in presentation. A tool like ISMS Lite helps you document all measures, controls, and policies in one place, so when filling out security questionnaires you can draw on reliable, up-to-date data instead of scrambling to gather information. That alone can make the difference between winning and losing a contract.

Even better: proactively approach customers. Provide your security factsheet unsolicited before the questionnaire arrives. That signals professionalism and saves both sides time. Some companies have a dedicated security page on their website that makes key information publicly accessible. This reduces the volume of incoming questionnaires and demonstrates transparency.

How to Communicate Security Without Overstating

One of the most common mistakes: companies invest in cybersecurity but don't communicate it — or communicate it poorly. Either they hide their measures out of modesty, or they overstate so heavily that it becomes incredible.

What Works

Concrete, not abstract. Don't say "We take security seriously" (everyone says that); say "We are ISO 27001 certified, conduct semi-annual penetration tests, and train all employees quarterly in cybersecurity." Specific measures are credible; general commitments are not.

Processes, not products. Customers don't want to know which firewall you use. They want to know how you handle a security incident, how you control access, and how you ensure your employees don't click phishing emails. Processes demonstrate maturity; products demonstrate budget.

Evidence, not promises. A certificate, an audit report, a completed security questionnaire — all of these are evidence. "We'll get certified soon" is a promise. The difference in impact on buyers is significant.

Transparency about limitations. No company is perfectly secure, and no auditor expects that. If you openly communicate what you do and where you plan to improve, that's more credible than claiming invulnerability. A mature security awareness is demonstrated precisely by knowing your own limitations and actively working on them.

What Doesn't Work

Buzzword bingo. "We rely on zero trust, AI-powered threat detection, and blockchain-based identity solutions." If you can't explain what that concretely means and how it's implemented at your organization, it does more harm than good. Buyers and IT leaders spot marketing speak immediately.

Excessive guarantees. "Your data is 100% secure with us." This statement is not only false — it's a liability risk. Absolute security doesn't exist, and anyone who promises it appears either naive or dishonest.

Security as an afterthought. If your website has thirty pages about your product and half a paragraph about security, that signals a clear set of priorities. If security is meant to be a competitive advantage, it must be visible in communications as well: on the website, in sales materials, in customer presentations.

What It Costs and What It Delivers

The investment in demonstrable cybersecurity has a measurable return on investment. Several dimensions in which the investment pays off:

Won Contracts

The most direct effect: you win tenders and contracts that you wouldn't have gotten without security evidence. In some industries, an ISO 27001 certificate is already a knockout criterion. Every contract you win thanks to the certificate is a direct return on your investment.

Do the math: if you win two to three contracts per year that you would have lost without certification, and each is worth EUR 20,000 to 50,000, the certification has paid for itself within the first year.

Higher Customer Retention

Existing customers whose security requirements you proactively meet stay loyal. They don't have to look for alternatives that better cover their compliance requirements. This reduces customer churn and stabilizes your revenue.

Reduced Insurance Premiums

Cyber insurers factor in the security maturity level when calculating premiums. Companies with ISO 27001 certification or demonstrably implemented security measures receive better terms. Savings can range from 10 to 30 percent of the annual premium, depending on company size and industry.

Avoided Losses

A ransomware attack costs a mid-market company an average of EUR 100,000 to 500,000, including business interruption, recovery, and reputational damage. A systematic ISMS reduces the likelihood of such incidents and minimizes damage when one does occur. This preventive value is hard to quantify, but it's real.

How to Get Started

If you want to use cybersecurity as a competitive advantage, you don't need a master plan for the next three years. You need a first step — and then the next one.

Take stock. What do you have today? Are there documented processes? Is there a risk assessment? Do you have training records? What do your technical measures look like? An honest assessment shows where you stand and where the biggest gaps are.

Analyze customer demand. What do your customers actually require? Collect the security questionnaires from the last twelve months. Look at the tenders you've participated in. Where were security requirements a topic? This gives you a clear picture of which evidence has the greatest business impact.

Prioritize pragmatically. You don't have to start with ISO 27001 certification. Perhaps a structured security factsheet and implementation of the most important measures (MFA, backup concept, incident response process) are enough for now. In parallel, you can plan the path to certification and budget the costs.

Involve sales. Your sales team needs to know which security evidence is available and how to use it. Create a package with the most important documents: certificate, security factsheet, pre-filled answers to common questionnaires. This accelerates the sales process and reduces effort for recurring requests.

Make security visible. Integrate your security achievements into external communications. A section on the website, a badge in the email signature, a slide in the company presentation. Not excessive, but visible. If you're ISO 27001 certified, everyone should know.

Organizations that view cybersecurity as a strategic topic — and not as a tedious obligation — will have a tangible advantage in the years ahead. Regulatory pressure will continue to increase, customer requirements will sharpen, and the threat landscape won't ease up. Those who invest now build a lead that competitors can only catch up to with effort and delay. And that is, in the best sense of the word, a competitive advantage.

Further Reading

• ISO 27001 Certification: Process, Costs, and Effort for SMEs
• NIS2 for Mid-Market Companies: What You Need to Know and What to Do Now
• Building an ISMS: The Complete Guide for Companies with 50 to 500 Employees
• TISAX Certification: What Automotive Suppliers Need to Know
• NIS2 for IT Service Providers and MSPs: Mastering the Dual Responsibility