Remote Access Security
What is remote access security?
Remote access security is a set of technologies and control mechanisms designed to authenticate off-site users and secure their connections to an organization's network, applications and data.
It helps protect corporate resources from unauthorized access, data breaches and cyber threats when employees or third parties connect remotely via home networks, public Wi-Fi networks or mobile hotspots.
Employees, contractors, freelancers and business partners often work from beyond the secure confines of the enterprise network. Threat actors can exploit security vulnerabilities to gain access to business-critical systems and confidential information. Data breaches can damage a company’s reputation and lead to revenue loss, regulatory fines and legal settlements.
Remote access security solutions reduce risk by protecting sensitive data and preventing unauthorized access.
What are the main types of remote access security solutions?
Remote access security solutions include virtual private networks, zero trust network access and remote desktop and support tools. Most organizations use more than one.
Virtual private networks
A virtual private network (VPN) creates an encrypted tunnel between a remote device and the company network, protecting data in transit. VPNs can defend against unauthorized network access and data disclosure, but they can slow performance for a large remote workforce. A misconfigured VPN can open a door for attackers instead of closing it.
Zero trust network access
Zero trust network access (ZTNA) replaces traditional perimeter-based security by continuously verifying every user and device request, regardless of location, following the "never trust, always verify" principle. It grants access to a specific application, whether hosted internally or delivered as SaaS, rather than the network as a whole, which limits what any single verified connection can reach. This approach avoids VPN performance and configuration concerns.
Remote desktop and support tools
IT help desks, system administrators and third-party vendors use remote desktop, Privileged Access Management (PAM) and remote support solutions to control a machine remotely and securely. These solutions typically broker the connection so the user never sees the system credentials, record sessions for audit purposes, and limit access to only the systems and tasks the job requires.
Who uses remote access security solutions?
Many types of users rely on remote access security solutions to connect to private enterprise networks.
| User type | Typical network connection |
| Employees | Home network, public Wi-Fi or a personal mobile hotspot |
| Contractors | Home network, public Wi-Fi or their own organization's network |
| Freelancers | Home network, public Wi-Fi or a personal mobile hotspot |
| Vendors and third-party partners | Their own organization's network |
What are the key components of remote access security?
Authentication and authorization
Authentication confirms a user's identity. Multi-factor authentication (MFA) strengthens security by requiring more than a password. Authorization determines what an authenticated user is allowed to access and do. A VPN authenticates once, at the time of connection, then relies on separate controls, such as firewall rules or network segmentation, to authorize what a user can reach.
A ZTNA solution re-evaluates authorization continuously, checking identity, device and context against policy for every request. Remote desktop and support tools broker credentials on the user's behalf and typically limit a session's authorization to the specific systems and tasks approved in advance.
Data encryption
All remote access security solutions encrypt data in transit. VPN solutions encrypt the entire tunnel. ZTNA and remote desktop and support tools typically encrypt only the specific application or session traffic they broker, not the whole network path.
Monitoring and auditing
Remote desktop and support tools typically record sessions for auditing. ZTNA logs and verifies every access request as it happens. A VPN usually does not monitor activity within an already-established connection unless paired with a separate monitoring tool.
Remote access security best practices
No remote access security solution addresses every remote access risk on its own. Organizations should pair their chosen solution with a core set of security practices:
Written policy. Spell out acceptable use and required security measures, and update and communicate the policy to employees as changes occur.
Patch management. Scan regularly for vulnerabilities and apply security patches quickly, since waiting leaves the door open longer than necessary.
Firewall configuration. Allow only legitimate remote connections, block everything else, and keep the configuration up to date as the network changes.
Multi-factor authentication. Require MFA across remote access, whether through a mobile prompt, a hardware key or biometrics.
Access review. Audit remote access permissions regularly, and revoke access the moment someone no longer needs it.
Phishing training. Train employees to recognize phishing attempts, since a well-crafted email is still one of the easiest ways to gain access to a network.
Disaster recovery. Maintain a tested plan for restoring systems and operations quickly if a control fails, since no configuration stays airtight forever.
More resources:
Blogs
What is privileged remote access and who benefits from it?
Products and solutions
Secure remote access for workforce users
Informational