Which VDR is the most secure?

The most secure virtual data room (VDR) is not defined by a single security feature. For organizations sharing highly confidential information during M&A, fundraising, restructuring or other strategic transactions, security depends on multiple layers working together to protect documents, control users and provide visibility into activity.

Encryption is essential, but deal teams should also consider granular permissions, document protection, authentication, auditability and the ability to revoke access when circumstances change. Independent security and privacy certifications provide another important measure of how seriously a provider approaches information protection.

The strongest VDR security model combines these capabilities without making the data room difficult for authorized users to navigate. Security should protect the transaction while allowing diligence to continue efficiently.

Evaluate security beyond encryption

Encryption should be considered a baseline requirement rather than the final measure of VDR security.

Deal teams should examine how precisely administrators can control access once documents enter the data room. Different buyers, advisors, internal teams and specialists may require different levels of access. Granular permissions allow organizations to limit information according to a participant's role and adjust that access as the transaction progresses.

Document-level protections add another layer. Information Rights Management (IRM) can help organizations maintain control over certain downloaded files, while restrictions on printing and downloading can reduce unnecessary distribution. Watermarking can further discourage unauthorized sharing by connecting documents to individual users.

A truly secure VDR should also provide detailed audit information so administrators can understand how participants interact with transaction materials. Security is strongest when access, documents and activity can all be governed within the same environment.

Consider privacy, governance and AI security

Modern VDR security also extends beyond traditional document controls.

As artificial intelligence (AI) becomes part of due diligence, deal teams need to understand how AI interacts with confidential transaction information. An AI feature can increase productivity, but organizations should evaluate where their data is processed, whether existing permissions are respected and how customer information is used.

The same principle applies to broader privacy and governance. Independent certifications and assessments can provide evidence that a provider maintains formal controls around information security and privacy. Intralinks VDRPro, for example, lists ISO 27701 certification alongside its security capabilities.

Organizations evaluating AI-enabled platforms should also ask whether confidential deal information is used to train models. Intralinks states that customer data is not used to train, retrain or improve its AI models. Understanding these practices is becoming an important part of evaluating AI security for dealmaking.

Protect sensitive transactions with Intralinks VDRPro

SS&C Intralinks VDRPro™ provides a multi-layered security environment designed for confidential transactions and high-stakes document sharing.

Granular permission controls help administrators determine which groups can access specific information. IRM protection encrypts supported downloaded documents and requires authorized users to authenticate before opening them. If access is revoked within the VDR, protected downloaded copies can also be prevented from opening.

VDRPro provides additional controls for restricting printing and downloading, applying confidentiality watermarks and monitoring participant activity through reports and audit logs. These capabilities help organizations maintain visibility and control as more participants enter the transaction.

Security also needs to work in practice. A VDR that creates excessive friction can encourage users to move information into less controlled channels. The objective is therefore to combine strong safeguards with an environment that authorized participants can use efficiently.

Which VDR is the most secure ultimately depends on the requirements of the transaction and organization. For deal teams evaluating platforms, the strongest security model should combine independently validated security practices, precise access controls, persistent document protection, auditability and clear policies for emerging technologies such as AI. Intralinks VDRPro brings these layers together to help organizations protect sensitive information throughout the transaction lifecycle.