For Bulgarian software companies, reaching international clients has never been more achievable. A product can be developed in Sofia, Plovdiv or Varna and sold across Europe or the United States without the company needing a large or even any physical presence abroad.
But as the customer base grows, the expectations surrounding the product change. A vulnerability that might once have been handled quietly by engineering can now trigger client concerns, reporting duties, contractual claims and reputational damage. The technical fix may still happen in Bulgaria, but the consequences can quickly spread across several markets.
This is where product security stops being only an engineering concern. It becomes part of the company’s ability to grow internationally and stand behind what it sells.
The September Wake-Up Call
The Cyber Resilience Act is accelerating that shift for companies selling digital products in Europe. From 11 September 2026, businesses covered by the Act will need to report actively exploited vulnerabilities and severe security incidents affecting products with digital elements. An initial warning may be required within 24 hours, followed by more detailed information within 72 hours.
This does not mean that every software bug becomes a regulatory incident. It does mean that a company must be able to determine quickly which products and versions are affected, whether the vulnerability is being exploited and which customers may be exposed.
For a growing Bulgarian product company, that can be more difficult than it sounds. The software may depend on dozens of third-party components, different clients may use different versions, and international sales may have grown faster than the internal security processes. If that information is scattered across teams, the first 24 hours may be spent simply trying to understand what happened.
Security Is Becoming Part of the Sale
Regulation is only one side of the change. Large European and American clients are already asking suppliers to show how vulnerabilities are identified, how third-party dependencies are monitored and how quickly security issues are communicated.
These questions are becoming part of procurement, security assessments and contract negotiations for SaaS platforms, fintech products, business applications and industrial software. A strong product may attract the buyer, but the company must also prove that it has the processes to support an enterprise relationship.
This creates a particular challenge for Bulgarian businesses competing against larger international vendors. The technology may be equally strong, but a weak or undocumented security process can delay the deal or create doubts about the maturity of the supplier. Product security is therefore becoming part of how trust is built during the sale.
When the Contract Becomes the Risk
The most expensive part of a vulnerability is not always fixing the code. To secure an important European or American client, a Bulgarian company may accept strict commitments around security standards, notification periods and financial responsibility.
The problem appears only when something goes wrong. A vulnerability may be discovered in an open-source library, engineering may release a patch quickly, and the company may still face a claim because the client believes it was informed too late or suffered operational disruption.
At that point, the discussion is no longer about whether the developers responded well. It is about whether the company met the promises written into the contract.
A short notification deadline may not match the company’s real escalation process. A security appendix may include broader commitments than the main agreement, while a cybersecurity exception may remove the liability cap. These gaps remain hidden while the product works. A vulnerability brings them into the open.
Where Insurance Comes In
This shift also changes the insurance conversation. Cyber insurance may respond to some costs related to the company’s own security incident, while Professional Indemnity or Technology Errors and Omissions insurance may become relevant when a client claims that a product failure caused financial loss.
But having both policies does not automatically mean that every vulnerability-related claim is covered. The issue may come from a third-party component, cause disruption without a traditional data breach or involve a contractual warranty that extends beyond the policy.
Territorial scope matters too. Coverage that was sufficient when the business worked mainly with Bulgarian or European clients may not reflect the legal costs and claim severity associated with the United States.
Insurance cannot replace secure development or realistic contracts. What it can do is prevent one vulnerability from putting years of product development and international growth at risk.
Product Security Is Part of Growth
Bulgarian technology companies have already shown that they can build competitive products for global customers. The next challenge is proving that they can manage the responsibility that comes with them.
Product security now influences regulation, procurement, contracts, client trust and insurance. For companies expanding across Europe or entering the US market, it is no longer something that can be left entirely to engineering.
It is becoming part of what the business sells.