Exclaimer re-certified for ISO 27001, ISO 27018 and SOC 2 Type II

We’re thrilled to announce that Exclaimer has once again successfully passed its recent ISO/IEC 27001, ISO/IEC 27018, and SOC 2 Type II audits. These certifications confirm that our security controls, data protection practices, and governance processes have been independently reviewed and validated against internationally recognized standards. 

Exclaimer is the only dedicated email signature management provider publicly listing both ISO and SOC 2 certifications. That combination matters when your team is responsible for approving SaaS tools that sit inside core communication systems. 

Below, we explain why email signature management belongs within your security scope, what each certification covers in practice, and how these standards simplify vendor selection. 

Why email signature management matters for security and compliance 

Email signatures are applied to every outbound message your organization sends. That alone gives them operational reach. 

From a security and compliance perspective, the impact goes further. 

They process directory data 

Modern email signature platforms integrate directly with Microsoft 365 or Google Workspace. They sync user attributes such as: 

• Full name 

• Job title 

• Department 

• Phone number 

• Office location 

• Custom directory fields 

Much of this qualifies as personally identifiable information (PII). Any SaaS tool that processes it must meet enterprise standards for data protection, access control, and auditability. 

They sit inside the corporate email flow 

Signature management solutions operate either server side or client side. In both cases, they interact with live corporate email traffic. 

That makes email signatures part of your communication surface area. If improperly secured, they could introduce risk across: 

• Data exposure 

• Incorrect or missing disclaimers 

• Policy inconsistencies

• Unauthorized template changes 

Secure email signature management reduces this exposure by embedding governance directly into outbound email. 

They are reviewed during audits and vendor assessments 

During ISO audits, SOC reviews, or enterprise customer due diligence exercises, vendors connected to email systems are frequently scrutinized. 

Security teams must demonstrate: 

• Formal vendor risk assessments 

• Evidence of independent certifications 

• Ongoing monitoring and review 

Without recognized certifications, reviews become more manual, more time consuming, and harder to defend.

What ISO/IEC 27001 covers in practice 

ISO/IEC 27001 is the global standard for information security management systems. It’s widely used by enterprises to assess SaaS vendor risk. 

Unlike feature level claims, ISO/IEC 27001 certifies the presence of a structured information security management system, or ISMS.  

Formal security governance 

ISO/IEC 27001 requires organizations to implement and maintain: 

• Documented security policies 

• Structured risk assessments 

• Access control frameworks 

• Incident response procedures 

• Ongoing internal review mechanisms 

Security is embedded into management processes, not treated as an add-on. 

Continuous improvement and audit validation 

Certification is not a one-time event. Providers must: 

• Regularly reassess risk 

• Update controls as threats evolve 

• Undergo recurring external audits 

For IT teams, ISO/IEC 27001 signals long term commitment to security governance rather than isolated controls. As the first email signature solution to receive ISO 27001 certification, Exclaimer has been at the forefront of secure email signature management since 2016.

What ISO/IEC 27018 adds for SaaS providers 

ISO/IEC 27018 builds on ISO/IEC 27001 and focuses specifically on protecting personally identifiable information in public cloud environments. 

For SaaS platforms that rely on directory data, this distinction is critical. 

Protection of PII in the cloud 

ISO/IEC 27018 defines requirements around: 

• How customer data can be processed 

• Restrictions on secondary use of data 

• Access controls for cloud hosted systems 

• Transparency in data handling practices 

This is particularly relevant for email signature platforms that synchronize user attributes from Microsoft 365 or Google Workspace. 

Clarity around cloud data handling responsibilities 

Public cloud environments operate under shared responsibility models. ISO/IEC 27018 provides additional clarity around how customer data is protected, segregated, and accessed. 

For compliance teams, this reduces ambiguity in vendor evaluations. 

Why SOC 2 Type II matters to IT teams 

SOC 2 Type II reports evaluate whether security controls are not only designed appropriately, but operating effectively over time. 

This distinction is important during procurement and renewals, providing operational evidence rather than policy statements. 

Operational effectiveness over a defined review period 

A SOC 2 Type II audit looks at compliance over a set period of time, often 3–12 months. The associated report assesses controls across five trust criteria: 

• Security: Systems, infrastructure, and data are protected against unauthorized access, misuse, and breaches through defined controls and monitoring. 

• Availability: The service remains operational and accessible as agreed, with resilience measures that support reliability and uptime commitments. 

• Processing integrity: System processes function as intended, delivering complete, accurate, and timely outcomes without unauthorized alteration. 

• Confidentiality: Sensitive information is restricted to authorized parties and handled in line with defined protection standards. 

• Privacy: Personal data is collected, processed, stored, and protected in accordance with established privacy principles and access safeguards. 

Auditors evaluate whether these controls operated as planned throughout the review period, not just whether they were documented. 

Reduced back-and-forth during security questionnaires 

Vendor security reviews often involve detailed questionnaires covering: 

• Encryption practices 

• Access management

• Monitoring and logging

• Incident response 

An up-to-date SOC 2 Type II report allows vendors to provide independent audit confirmation. This reduces repetitive documentation requests and shortens approval cycles. 

For IT and risk teams, that means fewer manual validation steps and clearer audit trails. 

What makes Exclaimer different 

Exclaimer is the only email signature management provider publicly listing both ISO and SOC 2 certifications. 

This combination delivers two complementary forms of assurance: 

Governance assurance through ISO 

ISO/IEC 27001 and ISO/IEC 27018 confirm structured security governance and formal protection of cloud based personal data. 

Operational proof through SOC 2 Type II 

SOC 2 Type II confirms that those controls are operating effectively over time. 

Together, these certifications provide both management system oversight and operational validation. For IT teams responsible for vendor approval, that reduces uncertainty during evaluation.

What this means during vendor selection 

Independent certifications have practical implications inside procurement workflows: 

Faster security approvals 

Recognized certifications reduce the need for evidence-gathering. Procurement teams can rely on third-party audit reports instead of vendor assertions. 

Fewer exceptions or compensating controls 

When vendors lack formal certifications, security teams often introduce additional contractual clauses or technical safeguards to manage risk. Certified providers reduce that need. 

Lower long-term risk exposure 

Ongoing audit requirements create accountability, as certifications must be maintained and revalidated. This reduces the risk of security drift over time. 

Clear audit trail for internal and external reviewers 

During regulatory inspections or customer due diligence exercises, documented certifications provide defensible evidence of vendor oversight.

How Exclaimer supports ongoing compliance 

Passing ISO and SOC audits is a baseline. Exclaimer maintains alignment with these standards through ongoing oversight and clear documentation that supports vendor assessments and renewals. 

Public Trust Center 

Exclaimer maintains a public Trust Center where IT and security teams can review current certification status and supporting documentation. 

Regular audits and renewals 

ISO and SOC certifications require recurring external audits. Exclaimer undergoes regular assessments to maintain compliance. 

Transparent documentation for security teams 

IT, security, and compliance teams can access structured documentation to support vendor risk assessments and annual reviews.