Cloudsilicon is a managed cybersecurity provider targeting small and mid-sized businesses with 5 to 200 computers and servers. The company delivers its services under the "Office Antivirus" brand, offering tiered endpoint protection plans built on Bitdefender's GravityZone platform. The product lineup includes three tiers. Office Antivirus Essentials provides multi-layered endpoint protection combining signature-based detection, machine learning, and behavioral analysis, along with network attack defense, web and content filtering, and risk management tools, all managed via a cloud-based console. Office Antivirus EDR extends this foundation with Endpoint Detection and Response capabilities, HyperDetect (a pre-execution machine learning threat detection layer), and automated sandbox analysis for inspecting suspicious files in an isolated environment. Office Antivirus MDR adds a fully managed detection and response service, providing 24/7/365 monitoring by security analysts who triage alerts, perform threat hunting, and execute containment and remediation actions on behalf of the customer. Underlying technologies include Bitdefender Ransomware Mitigation (behavioral detection with automatic file restoration), Bitdefender HyperDetect (tunable heuristics for fileless and evasive threats), Bitdefender Cloud Sandbox (cloud-based file detonation for zero-day and targeted threats), and Bitdefender EDR (continuous telemetry collection with investigation tools and visual attack timelines). The service is delivered with monthly payment options and supports Windows, macOS, and Linux endpoints and servers. Management is handled through a centralized, cloud-based console requiring no dedicated on-premise security infrastructure.