Remote work has permanently changed the threat landscape for small businesses. Your employees are working from home networks you don’t control, on personal devices that may not meet your security standards, accessing business systems over the public internet. This guide gives you the specific controls to manage that risk without making remote work painful.
The Remote Work Security Framework
Think of remote work security across five layers: Identity layer (who is the person, and are they who they claim to be?), Device layer (is the device secure and authorized?), Network layer (is the connection to business resources encrypted?), Application layer (what can this person access, and with what permissions?), and Data layer (is data protected regardless of where it goes?). Each layer must be addressed.
Layer 1: Secure Remote Identity
Deploy MFA on every business application accessible remotely — without exception. A stolen remote employee password with no MFA is an open door to your business. For high-privilege access (admin accounts, financial systems), require hardware security keys rather than authenticator apps. Consider implementing identity-aware proxy solutions (Cloudflare Access, Google BeyondCorp, Okta) that evaluate multiple signals before granting access: identity, device health, location, and time of day.
Layer 2: Secure the Remote Device
Company-issued devices: deploy MDM on all company devices (Microsoft Intune, Jamf, Kandji). Configure policies remotely: force encryption, require screen lock, push security updates, enable remote wipe. BYOD: require MDM enrollment for any BYOD device accessing company resources. At minimum require: current OS patches, active antivirus, enabled disk encryption, and screen lock. Do not allow unmanaged personal devices to access sensitive systems without MDM enrollment.
Layer 3: Secure the Remote Connection
VPN is required for any access to on-premise systems. Deploy a business VPN requiring MFA — not a consumer VPN. For cloud-first businesses working entirely in SaaS tools, VPN may not be necessary, but Conditional Access policies that verify device health before granting access become essential. Deploy DNS filtering (Cloudflare Gateway, Cisco Umbrella, NextDNS) that blocks malicious domains regardless of whether the employee is on VPN — this catches phishing sites, malware download attempts, and command-and-control communications.
Layer 4: Control Application Access
Implement least-privilege access — employees can only access systems and data their role requires. Review access permissions quarterly and immediately upon role changes. Use Single Sign-On (SSO) to centralize access control. When an employee is offboarded, one SSO deprovisioning revokes access to every connected application simultaneously — eliminating missed-account offboarding risk. SSO options for SMBs: Okta (enterprise), Google Workspace SSO, Microsoft Azure AD SSO, JumpCloud (SMB-focused, includes MDM).
Layer 5: Protect the Data
Confidential and restricted data must be encrypted at rest, require MFA authentication to access, be accessible only from managed devices via Conditional Access, and generate audit logs of all access. Both Google Workspace and Microsoft 365 include data loss prevention (DLP) features that can detect and block transmission of sensitive data patterns (SSNs, credit card numbers, PHI) outside your organization.
Remote Work Security Checklist
MFA required for all remote access to business systems. VPN deployed and required for on-premise resource access. MDM covers all company and BYOD devices used for remote work. DNS filtering active on all remote devices. Least-privilege access controls reviewed in past 90 days. Offboarding process removes all remote access on same day as departure. Remote work security policy is documented and all employees have signed it.
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