To make remote access to a PC safer, require multifactor authentication (MFA), keep remote-access tools and devices updated, and avoid exposing Remote Desktop Protocol (RDP) directly to the internet. For a work network, add least-privilege accounts, controlled access gateways, and monitoring. Home users can secure the accounts and settings they control; network-wide access rules may require help from an administrator.
Secure the account used to connect
Start with the identity that grants remote access. CISA advises businesses to require MFA for remote access and privileged or administrative accounts, and to use the strongest method the service supports. MFA adds a second verification step beyond a password; it does not replace strong account and device security. See CISA’s MFA guidance.
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Prefer phishing-resistant MFA when available
A physical security key is one option when the remote-access service and account support it. CISA’s guidance for state, local, tribal, and territorial governments identifies physical security keys as a preferred option and gives YubiKey as an example. Check compatibility before choosing a key, and follow workplace policy if the account is managed by an employer. A key is an authentication factor, not a replacement for other safeguards. CISA’s cybersecurity essentials for SLTTs provide that recommendation.
Reduce unnecessary remote desktop exposure
RDP can be a useful administration tool, but an internet-facing service gives attackers a direct route to attempt access. CISA’s active countermeasure says to disable RDP where it is not needed. If an organization needs RDP, CISA recommends placing access behind a secure VPN connection after MFA or using a zero-trust remote-access gateway, rather than broadly exposing RDP. See CISA’s active RDP countermeasure.
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If you use RDP
- Turn it off when it is not required.
- Close unused RDP ports and restrict allowed connections to the people and devices that need them.
- Require MFA and configure account lockouts to limit repeated login attempts.
- Log RDP connection attempts so an administrator can investigate unusual activity.
CISA’s ransomware guidance pairs these controls with updates for VPNs and devices used for remote work. A VPN can put another layer between the public internet and a remote service, but it does not make weak authentication, unpatched software, or excessive permissions safe. For remote desktop access, CISA also calls for secure protocols and strong authentication such as MFA. See CISA’s remote-user guidance and its ransomware guide.
Keep the full connection path updated
Remote access depends on more than the PC being controlled. Update remote-access software, VPN software, network devices, and the devices used to connect. For business access, establish a process for applying security updates promptly and for replacing unsupported components; a secure login cannot compensate for vulnerable software elsewhere in the path. CISA includes software and device updates among its remote-work and ransomware recommendations. Read CISA’s ransomware guide.
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Use organizational controls for work systems
Household users may not control the company network or access gateway. For managed systems, the organization should assign access according to job need and review how privileged access is used.
Limit privileges and separate administration
- Give each account only the permissions required for its work.
- Where feasible, separate administrator accounts from accounts used for everyday tasks, and use dedicated administration workstations.
- Route administrative remote access through controlled jump hosts or equivalent access points, rather than allowing unrestricted direct connections.
- Review remote-login and administrative activity, and investigate connections that do not fit expected users, devices, or work patterns.
CISA’s incident guidance recommends controls including MFA, separate administrator accounts and administration workstations, least privilege, and securing RDP or other remote-access methods with MFA and jump boxes. See CISA’s SUPERNOVA incident analysis and mitigations.
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Choose access architecture by its controls
Organizations evaluating remote access should assess whether a service is directly exposed or sits behind a VPN or gateway; whether it supports strong, preferably phishing-resistant MFA; whether access can be restricted by user, device, and role; and whether it provides useful logs and monitoring. CISA and partner agencies have highlighted Zero Trust, Secure Service Edge (SSE), and Secure Access Service Edge (SASE) as approaches organizations may consider, while also warning them to assess traditional VPN deployment and misconfiguration risks. These are organizational architecture choices, not prerequisites for a typical home PC. Read the 2024 CISA and partners announcement.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to prioritize the changes
- For a personal PC: enable the strongest MFA the remote-access account supports, update the software and devices involved, and disable RDP or other remote access when you do not need it.
- For a work PC or network: ask the administrator to confirm MFA, restricted access paths, current software, least-privilege permissions, and logging for remote connections.
- For an administrator: remove unnecessary exposure first, then verify authentication, access scope, patching, and monitoring as a connected set of controls.
Remote-access software has legitimate uses but can also be misused, which is why CISA’s guide addresses both securing it and detecting malicious use. See CISA’s guide to securing remote-access software.
Quick Recap
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