How to Maintain Security When Employees Work Remotely

Implement Strong Authentication and Access Controls

Securing remote environments begins with controlling access to your organization's data. Authentication and access controls are essential for preventing unauthorized access to sensitive systems and data.

Multi-Factor Authentication (MFA)

MFA adds an additional layer of security by requiring two or more verification methods. In remote work environments, where passwords are often compromised through phishing or weak password policies, MFA ensures that even if a password is stolen, an attacker cannot access the system without a second factor. This could include a one-time password (OTP), a biometric scan, or an authentication token.

Role-Based Access Control (RBAC)

Role-Based Access Control assigns permissions based on a user’s role within the organization. This limits access to only what is necessary for each employee, reducing the risk of exposure to critical systems. RBAC is particularly effective in large organizations where users require varying levels of access depending on their job functions.

Zero Trust Architecture

Zero Trust security assumes that threats could originate from within or outside the network. As a result, all users, both inside and outside the network perimeter, must be authenticated, authorised, and continuously validated for security posture before being granted access to applications and data. Implementing a Zero Trust model for remote employees significantly enhances security, especially when combined with tools like Identity and Access Management (IAM).

Use Encrypted Communication Channels

The movement of data between remote workers and corporate servers must be encrypted to ensure confidentiality and integrity. Encryption protects data from being intercepted or tampered with during transmission.

Virtual Private Networks (VPNs)

A VPN encrypts all data transmitted between remote devices and the organisation’s network, creating a secure “tunnel” over public networks. However, VPNs can be a single point of failure if not properly secured so it's essential to use strong encryption protocols (e.g., OpenVPN, IKEv2/IPsec) and multi-factor authentication to further secure access.

End-to-End Encryption (E2EE)

For sensitive communications, ensure that all tools used for messaging or video conferencing are equipped with end-to-end encryption. This ensures that only the intended recipient can decrypt and read the message, even if the communication platform itself is compromised.

Secure Socket Layer (SSL) and Transport Layer Security (TLS)

For web-based applications and services, using SSL TLS protocols is a standard way to encrypt data in transit. Ensure that all web traffic, including API connections and web applications, is protected by SSL/TLS, and enforce HTTPS for all remote workers accessing corporate web-based resources.

Regular Software Updates and Patch Management

Outdated software is one of the most common attack vectors for cybercriminals. Keeping all systems and software up-to-date is non-negotiable for remote work security.

Automated Patch Management Systems

Automated patch management tools are crucial for ensuring that all systems used by remote workers receive updates as soon as they are available. Tools like WSUS (Windows Server Update Services) or third-party solutions like SolarWinds or ManageEngine can help deploy patches across distributed environments.

Vulnerability Scanning

Regular vulnerability scanning helps detect and prioritise potential weaknesses in the organisation’s systems. Security teams should implement automated scanning tools that check for missing patches and software updates across all remote endpoints and servers. Vulnerabilities should be patched as soon as they are identified to mitigate the risk of exploitation.

Endpoint Security Solutions

With employees working remotely, securing the devices they use to access corporate data is paramount. Endpoints such as laptops, desktops, and mobile devices need to be equipped with comprehensive security solutions.

Endpoint Detection and Response (EDR)

EDR solutions monitor and analyse endpoint activities in real-time, enabling IT teams to detect and respond to threats such as malware, ransomware, or unauthorised access. EDR tools like CrowdStrike or Carbon Black can isolate compromised devices and neutralise threats before they spread to the network.

Antivirus and Anti-Malware

Deploying up-to-date antivirus and anti-malware solutions is the first line of defence on remote endpoints. Ensure that antivirus solutions are configured to scan all incoming and outgoing files and prevent execution of known malicious software. These solutions should include regular updates to combat emerging threats.

Data Loss Prevention (DLP) Tools

Data Loss Prevention (DLP) solutions play a key role in preventing unauthorized access, sharing, or transfer of sensitive corporate data, especially when employees are working remotely.

Monitoring and Control

DLP tools monitor the transfer of sensitive data, ensuring that it does not leave the organisation’s control without proper authorisation. These tools can block unauthorised data transfers, including to external cloud storage, personal email, or USB drives. This prevents data from being exfiltrated by malicious insiders or external attackers.

Granular Policies for Remote Workers

DLP tools can be customised with specific rules and policies depending on the employee's role. For example, highly sensitive data such as customer information or intellectual property can be restricted to certain devices or geographic locations, reducing the risk of data exposure outside secure environments.

Secure Collaboration Tools and Cloud Storage

Collaboration tools have become essential for remote work, but without proper security measures, they can introduce new risks.

Secure File Sharing

Use encrypted file-sharing platforms that comply with industry security standards. For example, tools like Microsoft OneDrive and Google Drive offer encrypted storage and secure file sharing features that can be configured to prevent unauthorized access. Ensure that sharing permissions are regularly reviewed and restricted as needed.

Cloud Access Security Brokers (CASB)

CASB solutions act as a security layer between cloud service providers and users. These solutions monitor and enforce security policies for data shared or stored in cloud applications. CASBs provide IT administrators with visibility and control over the cloud-based applications employees use, ensuring that sensitive data is not inadvertently exposed or mishandled.

Security Awareness and Training

Even with the most advanced security tools, human error remains one of the leading causes of security breaches. Educating employees about security threats and how to avoid them is a critical component of a comprehensive security strategy.

Phishing Simulations

Phishing attacks are one of the most common methods used to compromise remote workers. Regular phishing simulations can be an effective way to teach employees how to recognise and avoid phishing emails. These simulations replicate real phishing attempts and provide instant feedback to employees who fall for the attack.

Regular Security Workshops

Workshops and ongoing training sessions on security topics such as password management, the dangers of public Wi-Fi, and the importance of updating devices ensure that employees stay vigilant. These sessions should be mandatory for all employees, especially new hires.

Monitor Remote Work Behaviour and Activity

Monitoring employee behaviour while respecting privacy is a delicate balance. However, tracking unusual activity can help identify potential threats before they escalate.

User Behavior Analytics (UBA)

UBA tools analyse patterns in employee behaviour and detect deviations that may indicate a potential security breach. For example, if an employee accesses sensitive data outside regular working hours or transfers large files unexpectedly, UBA tools can flag this as suspicious. Such tools can work in tandem with DLP systems to prevent insider threats.

Audit Logs and Real-Time Alerts

Maintaining audit logs of all access attempts, file transfers, and system changes is critical for investigating potential security incidents. Real-time alerts should be configured to notify IT teams of any abnormal behaviour, such as failed login attempts or unauthorised access to sensitive systems.

TSplus Advanced Security: Your Solution for Remote Work Security

TSplus Advanced Security is designed to protect remote workers with features like multi-factor authentication, endpoint security, and ransomware protection. Ensure your organization stays secure while employees work from anywhere with TSplus Advanced Security.

Conclusion

Maintaining security when employees work remotely requires a layered, proactive approach. By implementing strong authentication, monitoring endpoints, educating employees, and continuously tracking behaviour, IT teams can prevent data breaches and ensure that remote work remains productive and secure.