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BackWhat is Data in use?
Data in use is digital information that an application, process, or user actively accesses, processes, or modifies. Unlike at rest, which remains stored on a device, or in transit, which moves across a network, data in use exists in a system’s memory (RAM) while software or users work with it.
Every time someone opens a document, processes a payment, edits a spreadsheet, queries a database, or runs an application, the system loads the required data into memory. During this stage, it becomes vulnerable because applications and users actively interact with it.
It is an essential part of cybersecurity because attackers often target active processes to steal sensitive information before encryption protects it again.
Why it matters
Sensitive information remains most accessible while applications actively process it. Attackers who compromise a system may attempt to access memory, hijack running processes, or exploit software vulnerabilities to capture.
It helps organizations:
- Prevent unauthorized access to active data.
- Reduce the risk of credential and memory theft.
- Protect confidential business and customer information.
- Support compliance with privacy and industry regulations.
- Strengthen application and endpoint security.
- Reduce the impact of malware and memory-based attacks.
Organizations should secure endpoints, applications, and user access to minimize risks during data processing.
Common methods for protection
Organizations use multiple security controls to protect actively processed information.
| Method | Purpose |
|---|---|
| Least privilege access | Limits access to sensitive information and applications |
| Multi-factor authentication (MFA) | Reduces the risk of unauthorized account access |
| Endpoint security | Detects and blocks malware that targets active processes |
| Memory protection features | Help prevent memory-based attacks and code execution exploits |
| Application security | Reduces vulnerabilities that attackers could exploit |
| Runtime monitoring | Detects suspicious activity during application execution |
Using multiple layers of protection helps reduce the risk of attackers accessing sensitive information while systems process it.
Data in use vs at rest vs in transit
Data exists in different states throughout its lifecycle.
| Data state | Description |
|---|---|
| In use | Information actively processed by an application or user |
| At rest | Information stored on a device, database, or storage system |
| In transit | Information moving between devices, applications, or networks |
Organizations should apply appropriate security controls to each data state because each presents different security challenges.
How Hexnode helps protect
Hexnode UEM helps organizations secure the endpoints that process sensitive information. Administrators can enforce device security policies, configure encryption on supported platforms, deploy operating system updates, manage approved applications, apply device restrictions, and monitor device compliance from a centralized console.
Hexnode XDR complements endpoint security by providing endpoint telemetry, threat detection, incident investigation, and response actions such as endpoint isolation for managed Windows endpoints. Together, these capabilities help organizations detect compromised devices, contain threats, and reduce the risk of attackers accessing sensitive data while applications actively process it.
FAQs
Traditional encryption protects data at rest and in transit, but applications usually decrypt before processing it. Organizations use additional controls such as secure application design, endpoint protection, memory protection, and confidential computing technologies to help protect data in use.
Examples include a user editing a document, an online banking application processing a transaction, a database responding to a query, a customer relationship management (CRM) application updating records, or an AI model processing input data.
