Remote Work Security: A Practical Baseline

Remote work is safer when identity is treated like production infrastructure. The most impactful security improvements for remote teams start with identity, because every other control depends on knowing who is accessing what.

• Enforce MFA for all users; require stronger controls for admins. A compromised remote worker's credentials are just as dangerous as a compromised on-site worker's credentials, and potentially harder to detect.
• Use Conditional Access to block risky sign-ins and require compliant devices for sensitive apps. Location-based policies should account for travel and mobile carrier NAT, not just office IP ranges.
• Reduce admin sprawl with RBAC and periodic access reviews. Remote environments make it harder to notice when someone has accumulated permissions they no longer need.

The goal is to make remote sign-ins at least as secure as on-site sign-ins. In practice, they should be more secure, because remote access is a higher-risk scenario.

Account recovery is a weak point that attackers exploit. When a remote worker loses their password or MFA device, the recovery process needs to verify identity through a separate channel. If recovery is too easy, attackers can social-engineer their way into accounts. If it is too hard, users find workarounds that create new vulnerabilities. Design your recovery process to be secure without pushing users toward insecure alternatives.

If you run a VPN, keep it patched, monitored, and tightly controlled. If you don't need a VPN, prefer SaaS access secured by identity and device posture. Not every remote access scenario requires a VPN, and in many cases, VPNs introduce more risk than they mitigate.

• Patch remote access systems on a schedule (patch management standards). VPN gateways are high-value targets that should receive security updates at the same priority as domain controllers.
• Monitor sign-ins and admin actions; alert on unusual patterns. A spike in VPN connections from unexpected locations or at unusual times can indicate credential compromise.
• Require MFA for remote access, not just for email. VPN connections without MFA are a significant gap.
• Consider SASE or Zero Trust Network Access (ZTNA) as alternatives to traditional VPN for application-level access without network-level exposure.

Split tunneling deserves careful attention. When a VPN client routes only organizational traffic through the tunnel while allowing direct internet access for everything else, users are protected on corporate resources but exposed on the open internet. This configuration is common for performance reasons, but it means the VPN does not protect against web-based threats or data exfiltration through non-corporate channels. If you use split tunneling, ensure that web filtering and endpoint protection cover the direct internet path.

Remote work means devices that you can't physically secure. A laptop left in a coffee shop, a personal phone with company email, or a home PC that the whole family uses all represent different risk profiles that need different controls.

• Define what can be accessed from unmanaged devices (and what cannot). Most organizations allow email from personal phones but restrict file access and admin portals to managed devices only.
• Use Mobile Device Management (MDM) / Mobile Application Management (MAM) patterns where possible; avoid local data copies for sensitive work.
• For BYOD specifics, see BYOD security. The key question: can you wipe company data without wiping the personal device?

Remote work increases data sprawl by default. Without office norms and physical boundaries, people save files to personal cloud storage, email attachments to personal accounts, and screenshots of sensitive information. None of this is malicious, but all of it creates compliance and security risk.

• Make "where files go" explicit: approved tools, approved sharing patterns, and retention expectations. Remote workers need clear guidance because they don't have the informal office norms to fall back on.
• Use DLP patterns where needed to reduce accidental sharing and leakage. DLP policies that monitor and flag data movement are especially valuable for remote teams.
• If AI tools are in use, define guardrails (see AI governance). AI assistants can inadvertently expose sensitive data through prompts and training data.

The biggest risk of remote work isn't that attacks are more likely; it's that you're less likely to notice them. Without the informal visibility of an office environment, you need deliberate monitoring and response capability.

• Centralize key events where feasible (SIEM guide). Sign-in logs, admin actions, and endpoint telemetry should be available in one place, not scattered across multiple consoles.
• Practice response roles via tabletop exercises. Remote incidents are different from on-site incidents: coordination is harder, evidence collection takes longer, and containment requires different tools.
• Ensure recovery is tested (Backup and DR testing). A remote worker whose laptop is encrypted by ransomware needs a tested recovery path that doesn't require them to come into the office.
• Deploy EDR to remote endpoints. You can't respond to threats on devices you can't see.

If you're just getting started with remote work security, don't try to implement everything at once. Prioritize the controls that provide the most risk reduction with the least disruption:

1. Enable MFA everywhere (if you haven't already). This single change blocks the majority of account compromise attempts.
2. Define device expectations (managed vs. unmanaged, what's allowed from each).
3. Secure remote access (patch VPNs, require MFA, or move to SASE/ZTNA where appropriate).
4. Set data handling rules (approved storage, approved sharing, no personal cloud storage for company data).
5. Establish monitoring (centralize logs, define alert thresholds, assign response ownership).

Each layer builds on the previous one. You can't enforce device posture without identity controls, and you can't monitor effectively without logging in place. Start at the foundation and work up.