Bitdefender Acquires Mesh Security to Enhance MDR and Email Threat Protection for MSPs

June 19, 2025: In a massive twist of events, Bitdefender has announced their acquisition of Mesh Security Limited, a known email security startup headquartered in Ireland, to be soon merged with its GravityZone XDR. This acquisition strengthens Bitdefender’s position in protecting one of the most frequently exploited attack surfaces, email while reinforcing its focus on the managed services market.

Why Email Security Is a Critical Layer

Email continues to be a primary entry point for ransomware, phishing, business email compromise, and credential theft. Attackers have evolved their techniques, rendering traditional perimeter-based defenses less effective. Through this acquisition, Bitdefender will enhance its GravityZone XDR and MDR platforms by incorporating Mesh’s layered email protection and telemetry.

What Sets Mesh Security Apart

Founded in 2020, Mesh Security was purpose-built to tackle modern email threats in cloud environments, with a strong focus on serving MSPs.

The platform offers a dual-layered protection model. The secure email gateway at the perimeter effectively filters out known threats, enhancing our overall security posture.  At the mailbox level, Mesh connects via API to continuously scan and act on suspicious messages that make it past initial filters. This enables real-time visibility and remediation inside tools like Microsoft 365 and Google Workspace.

Mesh is also known for its clean design, automation features, and MSP-native functionality. Multi-tenant support, policy templates, and integrations with popular PSA and RMM platforms like ConnectWise and Kaseya help MSPs deploy and manage the service with ease and efficiency.

What Bitdefender Gains from the Acquisition

Bitdefender intends to integrate Mesh directly into the GravityZone platform. The goal is to extend its XDR and MDR services to include email telemetry, which provides better threat correlation across endpoints, cloud, and inboxes.

This addition closes a major gap in Bitdefender’s threat coverage and transforms GravityZone into a more complete and connected defense system. It improves threat visibility, accelerates investigation processes, and enhances the efficiency of automated responses.

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Commitment to Existing Mesh Partners

Amid the integration, Bitdefender has confirmed that Mesh leadership and core team will be the same as they continue to grow the platform. For MSPs currently using Mesh, there will be no pricing changes for the next 24 months. The roadmap will continue with added investment in support, engineering, and feature development.

This continuity has been well-received by MSP partners who value consistency and clarity in vendor relationships.

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Part of a Larger Growth Strategy

Bitdefender has been expanding rapidly over the past two years. It acquired Singapore-based Horangi Cyber Security in 2023 and made further inroads into Asia through its 2025 deal with BitShield.

The acquisition of Mesh Security represents a significant opportunity to enhance our product offerings and address an important gap in our portfolio. With email defense now in place, Bitdefender has become a more comprehensive vendor for organizations and MSPs seeking a single-source solution for security.

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Market Reaction and Future Outlook

MSPs that rely on Mesh have praised its ease of use, reliability, and alignment with partner needs. The challenge now is to maintain that agility and MSP-first approach as the platform scales under Bitdefender’s brand.

Bitdefender’s move reflects a shift toward fully integrated cybersecurity stacks that are easier to manage and harder for attackers to evade. Email security is no longer optional. With Mesh, Bitdefender is delivering what the market demands, complete protection that connects every part of the security journey.

Secucenter’s Take

At SecuCenter, we view this acquisition as a timely and strategic enhancement to Bitdefender’s XDR capabilities. Mesh Security’s layered defense model fills a long-standing visibility gap between endpoint and cloud, especially within email communications.

This acquisition will convert the inbox from a weak link into a key source of threat intelligence. As a provider of white label SOC monitoring and soc staffing, we see clear synergy, i.e., our analysts can leverage this added telemetry to deliver more precise alerts, faster correlation, and stronger remediation guidance for MSPs and their clients.