Contractual Dependency with ICANN: Verisign's revenue is heavily reliant on its contracts with ICANN to operate the .com and .net top-level domains. Non-renewal, adverse changes to contract terms, or loss of these critical agreements could severely impact the company's business and financial results.

Regulatory and Governmental Scrutiny: As a provider of essential internet infrastructure, Verisign is subject to significant oversight from governments and regulatory bodies globally. Changes in regulations, imposition of price controls, or new compliance requirements could increase operating costs or limit revenue growth.

Cybersecurity Threats: The company faces constant and evolving cybersecurity threats, including denial-of-service attacks, malware, and sophisticated intrusions targeting its critical DNS infrastructure. A successful attack could lead to service disruptions, data breaches, reputational damage, and significant remediation costs.