What is Notarization in Cyber Security?

Notarization in cyber security verifies that security checks have examined software for known malicious content before organizations distribute or execute it. It complements code signing by allowing a trusted authority to validate software and issue proof that it passed security checks. Notarization helps organizations reduce the risk of installing tampered or malicious applications while giving users greater confidence in software authenticity and integrity.

Why is notarization important?

Code signing verifies who created an application, but it does not confirm whether the software is safe. Notarization adds another layer of trust by validating software before it reaches users.

Organizations use notarization to:

• Improve software trust
• Reduce malware risks
• Strengthen software supply chain security
• Support secure software distribution
• Improve user confidence

These benefits make notarization an important control in modern software security.

How does notarization work?

The notarization process validates software before developers distribute it to users. A typical workflow includes:

• The developer signs the application.
• The software is submitted for notarization.
• Security checks scan the application.
• A trusted timestamp is applied after successful validation.
• The software is approved for distribution.
• Devices verify the notarization before execution.

The process helps ensure software has not been modified after approval.

What technologies support notarization?

Several technologies work together to establish software authenticity and integrity.

These mechanisms help organizations verify software before deployment.

How does notarization strengthen software security?

Notarization works alongside other security controls rather than replacing them. Organizations should:

• Sign software before distribution
• Validate digital certificates
• Verify software integrity before installation
• Monitor certificate expiration
• Use reputable software sources
• Review software update processes
• Audit application deployment practices

For example, organizations can verify the integrity of files before deployment to confirm that no one has altered the software after the notarization process. In some environments, organizations also use blockchain notarization to create immutable records that demonstrate file authenticity and integrity, although it serves a different purpose from traditional software notarization.

Supporting trusted software deployment

While notarization in cyber security helps verify application authenticity, organizations also need centralized management to maintain secure configurations and control software deployment.

Hexnode helps IT teams strengthen endpoint security by enabling:

• Centralized endpoint management to manage applications across devices.
• Security policy enforcement to maintain consistent endpoint configurations.
• Patch management to keep software updated.
• Certificate management to support trusted digital certificates.
• Compliance monitoring to identify devices that fall outside organizational security policies.

These capabilities help organizations maintain secure software environments alongside broader application security practices.