The risks of expired SSL certificates for enterprise organizations
September 17, 2024
Observed on August 1, World Wide Web Day recognizes how deeply the web has transformed the way people communicate, work, shop, and access information. This day encourages us to reflect on just how far we've come since those early years of the World Wide Web and consider the technologies operating behind the scenes to keep those digital interactions trusted and available.
Many of these technologies are invisible to everyday users. Digital certificates authenticate websites, applications, devices, and other digital identities while helping encrypt sensitive communications. Certificate automation supports this trust infrastructure by discovering certificates, streamlining issuance, monitoring their status, and renewing them before they expire.
As digital environments grow and certificate lifespans shrink, this behind-the-scenes automation is becoming increasingly important for preventing outages and keeping the modern web trusted, available, and secure.
We have automation to thank for the tools and systems that make online activities feel effortless. Even though it may seem like a newer concept, automation has supported web operations for decades. However, its role has recently become far more important as digital environments have grown larger and more complex.
Automation capabilities now play a central role in shaping trust mechanisms and security strategies. Today, organizations may manage certificates across websites, applications, APIs, cloud platforms, devices, and other machine identities. Manual solutions were never truly sufficient, but at this point, they cannot reliably maintain the never-ending series of operational or security-focused tasks that help power the web.
Certificate lifecycle management (CLM) offers an example of how automation works behind the scenes to protect users and businesses alike. When CLM is automated, every digital certificate-related process becomes more efficient and less prone to error: certificates are continuously discovered while issuance is streamlined and renewals are completed on time.
This is especially critical given the current changes impacting certificate validity periods — they're shrinking rapidly. We've reached the first milestone established by the CA/Browser Forum: public SSL/TLS certificates now have a maximum validity of 200 days. Their lifespan will see another drop to 100 days in 2027, and, by 2029, they will span just 47 days.
Automation takes many forms, but digital certificate automation is fundamental to the modern web. This type coordinates how certificates are discovered, requested, issued, deployed, monitored, renewed, and revoked at scale. The exact processes vary by certificate type. For public SSL/TLS certificates, automation can integrate with domain control validation and issuance protocols. Other certificate types, including S/MIME and Code Signing certificates, follow their own validation and policy requirements.
CLM platforms orchestrate these processes across certificate authorities (CAs), infrastructure, applications, and security tools, reducing the manual work required throughout the certificate lifecycle.
At this point, CLM automation is indispensable. It's what allows businesses to keep up as certificate inventories continue to expand and especially as validity periods shrink. Users who never actually observe CLM processes still benefit from these solutions as they browse securely, explore cloud applications, or complete transactions online without worrying about their personal data.
Certificate automation operates within public key infrastructure (PKI), the framework of technologies, policies, processes, and trusted entities used to issue, manage, validate, and revoke digital certificates. While certificates provide credentials for websites, applications, devices, and other digital identities, PKI establishes the trust framework that allows systems to verify those credentials.
Trusted certificate authorities support PKI by performing validation checks and issuing certificates. They also provide revocation information that allows systems to identify certificates that should no longer be trusted before their scheduled expiration, such as after a private key compromise.
Root and intermediate certificates create chains of trust that allow browsers, applications, APIs, and other systems to verify certificates and establish trusted connections. Although these PKI processes can be performed manually, automation is increasingly necessary to enforce policies consistently and manage certificates at enterprise scale.
Without sufficient automation, large PKI environments are more likely to develop visibility gaps, inconsistent processes, missed renewals, and fragmented certificate management.
Certificate expiration is built into the trust model that supports the modern web. Without expiration, compromised certificates could appear valid indefinitely. Renewal allows organizations to replace certificates before they expire, maintaining trusted connections without disrupting service.
When digital certificates are allowed to expire without being renewed, outages can follow. Without valid certificates, systems can no longer authenticate identities and establish secure connections. As a result, browsers may display security warnings or block website access, while applications and APIs may reject connections or fail to exchange data. These certificate-related outages tend to happen more often when manual strategies are in place, such as tracking renewals in spreadsheets where expiration dates can be missed.
These issues are becoming more common as certificates are issued at scale and as validity periods shrink, prompting quarterly (and eventually, near-monthly) renewals. Under these new realities, proactive solutions become a matter of necessity. Depending on the organization, industry, and duration of the disruption, a certificate-related outage can result in significant revenue loss, recovery costs, operational disruption, and reputational damage.
A reliable World Wide Web becomes possible through automated solutions safeguarding connections and increasing confidence in every digital interaction. Automated certificate lifecycle management helps organizations manage certificates consistently across websites, applications, APIs, and other digital systems. It reduces manual work, improves visibility, and helps teams address certificate risks before they disrupt services.
An effective certificate management system builds automation into all lifecycle tasks and processes:
Certificates are best managed when they're known: when organizations can easily discern where these certificates exist and what they secure. These days, it's difficult to maintain full inventories due to the sheer volume of certificates and the many systems and environments they support.
Automated discovery closes gaps in visibility through continuous scanning and cataloging. Discovered certificates are built into centralized inventories that provide instant access to certificate details, including ownership, location, and expiration dates.
Certificate expirations and renewals can seem inconvenient, but they're an important part of a well-rounded security ecosystem. Shorter validity periods limit how long a certificate remains trusted and reduce the potential exposure window if its private key is compromised.
Through protocols such as ACME (Automated Certificate Management Environment), organizations can automate domain control validation and certificate issuance. When properly integrated with the target infrastructure, ACME clients can also support automated deployment and renewal with minimal manual intervention, helping maximize uptime.
Certificate management ties together the many elements of the certificate lifecycle. Inventories built through discovery provide valuable insight into certificate status, consolidated into a single view through centralized dashboards.
This unified approach supports consistent policy enforcement by showing when certificates are compliant and when they pose risks. Centralized systems also support machine identity management by applying consistent certificate, encryption, and authentication policies across devices, applications, and APIs. Solutions such as Sectigo Certificate Manager (SCM) bring these capabilities together to simplify oversight and reduce certificate-related risk.
Automation is vital to today’s World Wide Web, and already, it's built into many of the processes that keep digital infrastructure working reliably. The role of automation will continue to expand as digital services, certificate inventories, and machine identities expand.
Organizations keep up by making automated certificate lifecycle management part of their core technology and security infrastructure. Integrating it into processes such as DevOps pipelines helps make certificate management an ongoing security practice rather than a separate renewal task.
This visibility and control also support crypto agility, helping organizations identify and update certificates, keys, and algorithms as requirements change. That capability will become increasingly important as organizations assess post-quantum cryptography and prepare affected systems for future transitions.
By embedding automation into their infrastructure, organizations can reduce outages, apply policies more consistently, and maintain digital trust as technology and cryptographic requirements evolve.
Automation has become a core part of maintaining trust, availability, and business continuity across the modern web. PKI provides the trust framework, while automated CLM helps organizations discover certificates, enforce policies, complete renewals, and respond to risks before they disrupt digital services.
World Wide Web Day is an opportunity to recognize not only what the web makes possible, but also the infrastructure that keeps it functioning securely. Every time someone browses a website, accesses a cloud application, or completes an online transaction, digital certificates help authenticate services and protect communications. Automated CLM helps organizations maintain that trust at scale as certificate inventories grow and validity periods continue to shrink.
Explore Sectigo’s digital certificates and Sectigo Certificate Manager to help protect communications, automate certificate management, and maintain trust across the modern web.