IT
Published:
May 29, 2026
Updated:
May 29, 2026

Letsignit renews its ISO 27001 and ISO 27018 certifications

By
Guillaume De la Sablonnière
Content Factory Manager

We have some good news to share: Letsignit has just renewed its ISO 27001 and ISO 27018 certifications, in their most recent versions, 2022 and 2025 respectively.

This renewal doesn't happen by chance. Since 2022, Letsignit has gone through uninterrupted audit cycles: each renewal involves a full reassessment of the controls in place, not a simple rollover. And maintaining certification against the latest versions of these standards, including ISO 27018:2025 published less than a year ago, means the requirements are never set in stone. Compliance is built, documented and questioned at every cycle.

TL;DR:

Letsignit has just renewed its ISO 27001 and ISO 27018 certifications in their latest versions (2022 and 2025). Beyond the initial certification, these are uninterrupted audit cycles since 2022 by an accredited third party: documented proof of an ongoing security approach, not a one-off effort. For your IT and security teams, it's a concrete argument in any vendor qualification process.

What "renewal" really means

Obtaining an ISO certification for the first time is already a substantial undertaking. Renewing it against updated versions of the standards is another matter entirely. Here's a quick reminder of what these two certifications represent:

  • ISO 27001:2022: the world's reference standard for information security. Through an independent audit, it certifies that an organization protects its systems and the data flowing through them in a structured and rigorous way. In practical terms, this covers access control, incident management, the security of communications and supplier relationships. The 2022 version strengthens requirements around cloud security and hybrid work environments, two realities that have become unavoidable for most organizations.
  • ISO 27018:2025: the standard specific to the protection of personal data in the cloud. It certifies that your employees' information (names, job titles, contact details and so on) is handled with the required organizational and technical safeguards, and that it cannot be used for any purpose other than those intended. The 2025 update aligns these requirements with the reinforced level set by ISO 27001:2022.

Both certifications are awarded following an audit by an independent, accredited third party. For your teams, that's a documented guarantee, not a mere statement of intent.

A long-term commitment

Since 2018, Letsignit has made GDPR and data protection a structuring part of its organization. This renewal follows that same logic: a continuous, audited and documented approach, not a one-off effort.

“GDPR isn't an end in itself. Above all, it's a framework that helps structure how data is used and clarify responsibilities around it.”

Frédéric Campagna, Letsignit DPO Frédéric Campagna, Letsignit DPO.

To go further on our overall approach to data protection, Frédéric explains in detail what shapes our practices day to day.

What it means in practice

Letsignit is directly connected to your employees' email systems. Every signature deployed handles personal data: names, job titles, contact details, photos. That's exactly what these certifications govern.

For IT and CISO teams, they provide a tangible element in any vendor qualification process. The 2022 and 2025 versions of the standards cover cloud and hybrid environments, directly applicable to a solution like Letsignit, and accredited third-party audits make the assessment objective, independent of any commercial claim. Learn more for IT teams.

For communications and marketing teams, it's the assurance that every email signature relies on infrastructure that is reliable, compliant and regularly audited. Our guide on email signatures and GDPR compliance explains how the two work together day to day.

Key takeaways

  • Letsignit's ISO 27001:2022 and ISO 27018:2025 certifications have just been renewed in their latest versions.
  • This renewal reflects a continuous effort, not a one-time achievement.
  • The new versions of the standards include reinforced requirements on cloud security and data protection in hybrid environments.
  • All data is hosted in Europe, encrypted, continuously monitored and audited every year.
  • For your IT teams, it's a solid argument in any vendor qualification process.
About the author
Guillaume is Letsignit’s Content Manager! With words as his tools, he crafts a variety of content (text, video, and, in the most extreme cases, telepathy) to boost Letsignit's visibility online. Legend has it that, at just 3 years old, Guillaume devised his first multi-channel web marketing strategy using a dictionary, a baby bottle, and a bit of India ink. We can’t confirm if it’s true, but it sure makes for a great story!
About Letsignit
Letsignit is an email signature management solution that empowers organizations to turn employee email signatures into a dynamic and personalized engagement channel for their brands and campaigns.

Questions
Fréquentes

1

Is it possible to track the number of clicks on email signatures?

Yes, with the 'Campaigns' offer, it is possible to track the number of clicks on the email signatures of all your employees in the 'Statistics' area of the platform.

You can then access a detailed or global view of the number of clicks on the email signatures of each employee. You can use the search option to target a specific signature or a given period. Finally, you have the possibility to export all statistics to an Excel document.

If you launch campaigns with banners inserted in your email signatures, you can also access their performance via this same space.

2

Can we add links to social networks, our website, and appointment-setting applications such as Calendly?

With Letsignit, you can easily add social network icons in your collaborators' email signatures and link to your company pages. Also, our "attributes" feature allows you to manage personalized URLs for each of your collaborators such as their individual LinkedIn profile.

And that's not all: you can add links to an appointment-setting application, allow your customers to leave reviews easily, and integrate our 'Chat on Teams' widget to let anyone start a discussion via Microsoft Teams chat.

3

Can employees update their signature information themselves (number, function, etc.)?

It’s up to you! As an administrator of the Letsignit platform, you choose whether or not to grant modification rights to your employees. These permissions are managed on an attribute-by-attribute basis, which means that you can decide to allow the employee to change their phone number, but not the address of your premises, for example.

This feature applies to all attributes in your directory, including custom attributes created on Letsignit. When your employees change one or more attributes, your directory is obviously not affected.

4

Why it is important to standardize our email signatures on a large scale to ensure our identity and brand image?

It often happens that employees make their email signature their own: custom format, bad fonts, colors inconsistent with the brand standards... all of this has an impact on your brand!

A consistent visual identity is considered authentic and outperforms a perceived weak one by 20%. And, your customers are 2.4 times more likely to buy your products.

With Letsignit, take back control over your brand identity by standardizing all your email signatures. Our tool has many features that allow you to customize your signatures by department, by audience or by subsidiary. Not to mention the possibility of carrying out campaigns within your email signatures thanks to our Campaign offer.

5

What is the user experience like for our employees?

What is the user experience like for our employees?

  • If you opt for the Letsignit Add-in for Outlook, they will have a dedicated space in their Outlook account where they will be able to view the signatures and campaigns assigned to them.
  • If you opt for the Letsignit Desktop APP, they will be able to preview all their signatures and campaigns in this space. If they want to change their default signature to another one when sending an email, this will be done in their signature library in Outlook.

In both cases:

  • They preview their signature before sending an email and choose from signatures assigned to them.
  • Based on the permissions granted, they will also be able to modify their personal information such as their name, position, or address in these spaces.

In short, they have autonomy in their email signature, but you keep control on the field, signatures, and banners they can edit or use.

6

Can my employees have multiple signatures available to them?

With our "multi-signature" feature, your employees can benefit from multiple email signatures. No technical manipulation is required. Thanks to our Add-in for Outlook or the desktop app, they can change their email signatures as they wish with just a few clicks.

Regarding the creation of email signatures, you can make several variations such as:

Everything has been thought of to go further in the personalization process based on the recipient of your emails.

7

Regarding “Green IT,” have you implemented measures to limit the digital footprint of email signatures?

If sending emails has an impact, non-optimized email signatures also have an impact. An unsuitable format or an image that is too heavy considerably increases the size of your signatures... and therefore, your emails.

As a responsible economic actor, we contribute to reducing our CO2 emissions and those of our customers in several ways:

  • Optimization of the weight of signatures and campaigns in emails.
  • Green features: lightening of signatures during response/transfer emails, possibility of not embedding images, implementation of lighter signatures for internal exchanges.
  • Integration of a 'Switch to Teams' widget to encourage your employees to continue their exchanges via chat, rather than email.

As we are increasingly involved in sustainability initiatives, our priority in 2023 is to develop even more green IT functionality.

8

Regarding “Green IT,” have you implemented measures to limit the digital footprint of email signatures?

If sending emails has an impact, non-optimized email signatures also have an impact. An unsuitable format or an image that is too heavy considerably increases the size of your signatures... and therefore, your emails.

As a responsible economic actor, we contribute to reducing our CO2 emissions and those of our customers in several ways:

  • Optimization of the weight of signatures and campaigns in emails.
  • Green features: lightening of signatures during response/transfer emails, possibility of not embedding images, implementation of lighter signatures for internal exchanges.
  • Integration of a 'Switch to Teams' widget to encourage your employees to continue their exchanges via chat, rather than email.

As we are increasingly involved in sustainability initiatives, our priority in 2023 is to develop even more green IT functionality.

Frequently asked questions

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