Antivirus for NAS: Do Businesses Really Need It?

Network Attached Storage (NAS) systems have evolved far beyond simple file storage. Today, organizations rely on Synology NAS to support file sharing, Microsoft 365 backups, virtualization, surveillance, collaboration, and disaster recovery. As NAS systems become more central to business operations, they also become attractive targets for cybercriminals.

Many businesses assume that firewalls and endpoint antivirus software provide enough protection. Others believe a NAS is isolated from threats because it is not a traditional desktop computer. In reality, malware, ransomware, infected files, and unauthorized access can all affect NAS environments if proper security measures are not in place.

While antivirus software is an important part of protecting a Synology NAS, it should be viewed as one layer within a broader cybersecurity strategy rather than a complete security solution.

Why NAS Security Matters

Business data stored on a NAS often includes:

Financial records
Employee information
Customer files
Legal documents
Microsoft 365 backups
Surveillance recordings

Compromising this data can lead to operational disruption, financial loss, and regulatory consequences.

Can a NAS Become Infected?

Although NAS devices are not traditional workstations, they can still be affected by cyber threats.

Potential risks include:

Malware-infected files
Ransomware attacks
Unauthorized user access
Exploited software vulnerabilities
Malicious scripts
Compromised user credentials

A compromised NAS can impact every user who depends on its stored data.

How Antivirus Helps

Antivirus software helps identify and isolate malicious files before they spread throughout the storage environment. Learn how antivirus works in NAS environments

Organizations can use antivirus protection to:

Scan shared folders
Detect known malware
Quarantine infected files
Schedule regular scans
Reduce malware exposure

Regular scanning adds another layer of protection for business data.

Synology Antivirus Solutions

Synology provides built-in security tools, including Antivirus Essential and support for third-party antivirus solutions. Compare Synology Antivirus Essential vs McAfee for NAS protection

These tools can help organizations:

Perform scheduled scans
Scan on demand
Detect malicious files
Generate security reports
Monitor scan history

Combined with DSM security updates, antivirus contributes to a stronger security posture.

Antivirus Alone Is Not Enough

Antivirus cannot stop every cyber threat.

Organizations should also implement:

Multi-factor authentication
Strong password policies
Least-privilege access controls
Firewall protection
Regular DSM updates
Security Advisor reviews

Layered security significantly reduces organizational risk. Explore professional data recovery options if data is compromised

Protect Against Ransomware

Ransomware remains one of the biggest threats facing businesses.

Organizations should combine antivirus with:

Snapshot Replication
Active Backup
Hyper Backup
Immutable backup strategies
Offsite backup copies

A comprehensive backup strategy enables rapid recovery if ransomware bypasses preventive controls. Learn how to protect your NAS from ransomware and malware attacks

Monitor Security Continuously

Security requires ongoing monitoring rather than one-time configuration.

Administrators should regularly review:

Antivirus scan results
Security Advisor reports
User login activity
Permission changes
System logs
DSM update status

Continuous monitoring helps identify potential threats before they become serious incidents. Understand how storage type affects antivirus scanning performance

Educate Employees

Technology alone cannot eliminate cyber risk.

Organizations should train employees on:

Phishing awareness
Safe file sharing
Password security
Suspicious email recognition
Secure remote access

Well-informed users help strengthen overall cybersecurity.

Plan for Future Security

As businesses expand, security requirements also increase.

Organizations should prepare for:

Additional users
Larger Microsoft 365 environments
More remote workers
Increased storage capacity
Growing compliance obligations

Security planning should evolve alongside business growth.

Best Practices for Securing a Synology NAS

Organizations can improve NAS security by:

Installing antivirus protection
Keeping DSM fully updated
Enabling multi-factor authentication
Following the principle of least privilege
Monitoring security activity
Maintaining reliable backups and disaster recovery plans

These practices provide stronger protection while improving business resilience.

About Synology

Synology helps organizations secure business data through Antivirus Essential, Security Advisor, Active Backup, Hyper Backup, Snapshot Replication, VPN Server, secure remote access, user management, and centralized storage. Its integrated security ecosystem helps businesses strengthen cyber resilience while protecting critical information.

About Epis Technology

Epis Technology helps organizations secure their Synology environments through security assessments, Synology consulting, antivirus implementation, Microsoft 365 backup protection, disaster recovery planning, cybersecurity consulting, infrastructure optimization, and ongoing Synology support.

By combining deep Synology expertise with practical cybersecurity strategies, Epis Technology helps businesses reduce security risks, strengthen data protection, and build resilient IT environments that support long-term growth.

Antivirus for NAS: Do Businesses Really Need It?