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Security4 min readUpdated December 2025

SentinelOne Next-Generation Antivirus

By BRITECITY Team | 15+ years experience

Last updated December 27, 2025

Written by BRITECITY's IT experts with expertise in managed it services, cybersecurity, cloud computing

SentinelOne provides next-generation antivirus protection using machine learning to detect and stop advanced threats, exploits, and fileless malware.

SentinelOne is a next-generation antivirus solution that goes far beyond traditional antivirus protection. Using machine learning and AI, SentinelOne detects and stops advanced threats, including exploits and fileless malware that conventional antivirus products miss.

How SentinelOne Works

SentinelOne employs a lightweight agent that monitors activity on your computer in real-time. Unlike traditional antivirus that relies on signature databases, SentinelOne uses behavioral analysis and machine learning to identify threats based on how they act, not just what they look like.

Machine Learning Protection

The SentinelOne agent continuously analyzes activity on your device:

  • Monitors file behavior and system changes
  • Analyzes network connections
  • Detects exploitation attempts
  • Identifies fileless and memory-only attacks
  • Recognizes ransomware patterns before encryption begins

Automatic Response

When a threat is identified, SentinelOne takes immediate action:

  1. Kill: Stops the malicious process
  2. Quarantine: Isolates affected files
  3. Disconnect: Can isolate the device from the network to prevent spread
  4. Rollback: Restores any files modified by the attack

Key Features

Ransomware Rollback

If ransomware does manage to encrypt files, SentinelOne can roll back the changes and restore your files to their pre-attack state.

Device Isolation

Infected devices can be instantly isolated from the network while remaining manageable for remediation.

Offline Protection

Protection continues even when devices are offline or disconnected from the internet.

24/7 Monitoring

Our security team monitors all alerts and AI detections around the clock for rapid response.

Malware Prevention

SentinelOne combines dynamic whitelisting/blacklisting with deep file inspection to block threats before they can impact your system. It protects against:

  • Trojans
  • Malware
  • Worms
  • Backdoors
  • Payload-based attacks
  • Zero-day threats

Document Protection

Many attacks come through seemingly innocent documents. SentinelOne uses machine learning to prevent document-based attacks from:

  • Microsoft Office files (Word, Excel, PowerPoint)
  • Adobe PDF files
  • Other document formats commonly used in business

What You See

The SentinelOne agent runs quietly in the background. You will see:

  • System Tray Icon: A small icon showing protection status
  • Occasional Notifications: When threats are blocked or when scans complete
  • No Performance Impact: The lightweight agent is designed to work without slowing down your computer

Part of POLARITY

SentinelOne is included as part of BRITECITY's POLARITY cybersecurity service, priced at $15 per computer monthly (in addition to your Managed Service Plan). For maximum effectiveness, all computers in your organization should be protected.

Combined with the other POLARITY components (Cisco Umbrella, ThreatLocker, and BreachSecureNow), SentinelOne provides comprehensive protection for your business.

About the Author

BRITECITY Team

Written by the BRITECITY Team with over 15 years of combined IT experience. Our experts hold certifications including Microsoft Solutions Partner, CompTIA Security+, AWS Certified.

Managed IT ServicesCybersecurityCloud ComputingIT Strategy

Quick Answers

How is SentinelOne different from traditional antivirus?
Unlike signature-based antivirus that only catches known threats, SentinelOne uses AI and behavioral analysis to detect never-before-seen malware, fileless attacks, and sophisticated exploits. It can also automatically roll back ransomware damage.
What happens when SentinelOne detects a threat?
SentinelOne automatically quarantines or kills malicious processes, alerts our security team, and can roll back affected files to their pre-infection state. You may see a notification, but no action is required - we handle the response.

Need More Help?

Our support team is ready to assist you with any questions about our services or policies.

Contact SupportCall (949) 243-7440