Device security basics
What is device security?
Device security is the safeguarding of internet-connected devices, such as mobile phones, laptops, PCs, tablets, IoT devices, from cyberthreats and unauthorized access. Device security typically requires strong authentication, mobile device management tools, and restricted network access.
Why is device security important?
Device security is important for safeguarding sensitive data and helping to prevent unauthorized access, data breaches, and other threats. Securing devices connected to corporate networks can help mitigate risks posed by remote work, bring your own device (BYOD) policies, and IoT ecosystems.
How do I make sure my device is secured?
To secure your devices, a multilayered approach is required. Start by training users in security best practices. Implement a zero trust network access (ZTNA) policy to mitigate the risk of unauthorized access. Deploy device security tools to fortify defenses against threats and safeguard the network.
Device security vs endpoint security
Device security and endpoint security overlap but differ in scope:
| Aspect | Device security | Endpoint security |
|---|---|---|
| Scope | Protecting the devices themselves against compromise, tampering, and unauthorized access | Detecting and responding to cyberthreats targeting devices that connect to a network |
| Focus | Device integrity: authentication, encryption, patching, hardening, monitoring | Threat prevention, detection, and response |
| Typical tools | Device management, encryption, configuration policies | EPP and EDR threat-defense solutions |
| Relationship | Establishes a trusted, hardened device baseline | Defends that device against active threats |
For threat detection and response on devices, see the endpoint security page.
Main threats to device security
Devices face a range of threats whether they are corporate-managed, BYOD, or IoT. The most common include:
- Unauthorized access — attackers or unapproved users reaching a device or its data
- Device tampering — physical or software modification that compromises device integrity
- Malware infection — malicious software installed through phishing, downloads, or unpatched flaws
- Data compromise and breaches — theft or exposure of data stored on or accessed by the device
- Credential compromise — stolen or phished credentials used to gain authorized access
What a device security program includes
A device security program protects devices throughout their lifecycle. Core components include:
- Secure boot — verifying device integrity from startup
- Device encryption — protecting data at rest on the device
- Patch management — keeping operating systems and applications current
- Configuration hardening — removing unnecessary services and enforcing secure settings
- Monitoring — continuously checking device health and posture
