CISO Tribune

Vendor comparison · 2 companies

Bitdefender vs UnderDefense

Bitdefender provides cybersecurity solutions to small and medium businesses, mid-market enterprises and consumers. UnderDefense sells UnderDefense MAXI, a security and compliance automation platform, and an MDR service in which security experts monitor, detect and respond to incidents. CISO Tribune files both under MDR and managed SOC. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Bitdefender
  • UnderDefense
Bitdefender vs UnderDefense: Products, Customers and Funding Compared
BitdefenderBitdefender provides cybersecurity solutions to small and medium businesses, mid-market enterprises and consumers.bitdefender.comUnderDefenseUnderDefense sells UnderDefense MAXI, a security and compliance automation platform, and an MDR service in which security experts monitor, detect and respond to incidents.underdefense.com
What it sells
  • GravityZone PHASR[10]Hardening and attack surface reduction.
  • GravityZone MSP Security Solutions[14]Multi-tiered security for managed service providers.
  • UnderDefense MAXI[1][2][3][5][6]A security and compliance automation platform. UnderDefense MAXI integrates with SIEMs, firewalls and endpoint protection solutions.
  • UnderDefense Agentic AI SOC[4]AI agents investigate each alert. Analysts on shift 24/7 decide what happens next.
  • MDR[1][2][6]Security experts monitor, detect and respond to incidents.
  • Cloud-based SIEM[2]A cloud-based SIEM that collects, analyzes and responds to security events.
  • CIS AWS Benchmark assessment[8]A self-service assessment of AWS security.
Categories
Headquarters
Bucharest, Romania[2][4]Not stated on its pages
Founded
2001[2][4][10][13]Not stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • September 23, 2026Bitdefender announced GravityZone AI Visibility and Control, a solution giving organizations and MSPs visibility into employee AI tool usage and the ability to reduce related risks.[17]
  • May 6, 2026Bitdefender appointed Frank Koelmel as Chief Revenue Officer of its Business Solutions Group.[7]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 4, 2026[8]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[10]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Bitdefender sells mainly to small and medium businesses, mid-market enterprises and consumers. Its business group says it serves businesses, government entities, and non-profit organizations in industries worldwide. Its small business products are positioned for small teams with no dedicated IT staff. Managed Service Providers are a named customer type, with licensing based on monthly usage.UnderDefense MAXI integrates with a customer's security infrastructure, including SIEMs, firewalls and endpoint protection solutions. UnderDefense offers compliance templates to organizations working toward standards such as SOC2 and ISO 27001. UnderDefense MAXI provides executive-level reports for C-level readers.
Last verified
September 27, 2026October 26, 2026

Where they overlap

  • Bitdefender and UnderDefense are both filed under MDR and managed SOC.

Where they differ, field by field

  • Bitdefender's primary category is EDR and XDR; UnderDefense's is MDR and managed SOC.
  • Bitdefender is also filed under Endpoint protection platforms. UnderDefense is also filed under Penetration testing and red team services, Compliance automation and SOAR and security automation.
  • Bitdefender lists GravityZone PHASR and GravityZone MSP Security Solutions. UnderDefense lists UnderDefense MAXI, UnderDefense Agentic AI SOC, MDR, Cloud-based SIEM and CIS AWS Benchmark assessment.
  • Bitdefender is headquartered in Bucharest, Romania.
  • Bitdefender was founded in 2001.

What it sells: Bitdefender

What GravityZone PHASR does[10]
Proactively hardens defenses and reduces the attack surface. PHASR stands for Proactive Hardening and Attack Surface Reduction.

What it sells: UnderDefense

What UnderDefense MAXI does[1][2][3][5][6]
UnderDefense MAXI natively monitors endpoints, networks, users and decoy beacons. UnderDefense MAXI provides ready-to-use playbooks, AI-powered alert enrichment and notifications through Slack, Jira or a preferred tool. UnderDefense MAXI provides pre-built compliance templates for standards such as SOC2 and ISO 27001.
What UnderDefense Agentic AI SOC does[4]
UnderDefense Agentic AI SOC uses AI agents that investigate each alert. Analysts on shift 24/7 decide what happens next.
What CIS AWS Benchmark assessment does[8]
UnderDefense offers a self-service CIS AWS Benchmark assessment. The assessment covers evaluating the maturity of cloud security controls, identifying misconfigurations, providing detailed mitigation instructions and giving a summary table with a final CVSS v3.0 score.

Questions about Bitdefender and UnderDefense

What do Bitdefender and UnderDefense sell?
Bitdefender sells GravityZone PHASR and GravityZone MSP Security Solutions. UnderDefense sells UnderDefense MAXI, UnderDefense Agentic AI SOC, MDR, Cloud-based SIEM and CIS AWS Benchmark assessment.
Are Bitdefender and UnderDefense in the same category?
They share MDR and managed SOC. Bitdefender's primary category is EDR and XDR and UnderDefense's is MDR and managed SOC.
Where are Bitdefender and UnderDefense headquartered?
Bitdefender is headquartered in Bucharest, Romania.
When were Bitdefender and UnderDefense founded?
Bitdefender was founded in 2001.
Who are Bitdefender and UnderDefense sold to?
From its own pages, Bitdefender sells mainly to small and medium businesses, mid-market enterprises and consumers. UnderDefense MAXI integrates with a customer's security infrastructure, including SIEMs, firewalls and endpoint protection solutions.
What have Bitdefender and UnderDefense announced recently?
September 23, 2026: Bitdefender announced GravityZone AI Visibility and Control, a solution giving organizations and MSPs visibility into employee AI tool usage and the ability to reduce related risks.

About Bitdefender

Bitdefender provides cybersecurity solutions to small and medium businesses, mid-market enterprises and consumers.

Bitdefender says it has protected millions of consumer and business environments since 2001. Bitdefender states that it protects millions of users across 170 countries. Bitdefender says it collaborates with global law enforcement to dismantle cybercriminal networks. For enterprise customers, Bitdefender offers a security platform or a managed service.

Bitdefender says GravityZone integrates global cloud-based whitelisting and hybrid machine learning voting algorithms to minimize false positives across endpoint processes. Bitdefender says it serves more than 40,000 businesses, government entities, and non-profit organizations in industries worldwide. Bitdefender says its unified endpoint security and analytics platform and managed services help organizations across client, server, on-premises, cloud or hybrid environments. Bitdefender has global teams driving innovation and growth across the GravityZone platform and cybersecurity services.[11][12]

For small businesses, Bitdefender sells security meant to defeat advanced threats like phishing, ransomware and fileless attacks without burdening IT teams. Bitdefender sells endpoint security for smaller businesses that covers file servers, desktops, or laptops, physical or virtual machines. Bitdefender Native XDR uses ML to automatically correlate and consolidate threat signals across endpoints, identities, apps, network, clouds, mobile devices and beyond. Bitdefender integrates Identity Threat Detection and Response (ITDR) into Extended Detection and Response (XDR) for protection of all identities and identity infrastructure. Bitdefender HyperDetect enables organizations to fine-tune ML detection and stop advanced attacks at pre-execution. Bitdefender says Anomaly Defense uses AI technologies to build behavior baselines and spot anomalies with minimum noise. The Bitdefender GravityZone AI Assistant uses Large Language Models (LLMs) to simplify threat investigations by answering analysts' questions instantly.[1]

Bitdefender sells a service that uses 24/7 monitoring, technologies deployed at the host and network layers, advanced analytics, threat intelligence, and human expertise in incident investigation to remove threat actors from customer environments. Bitdefender says its security analysts keep eyes on customer businesses 24x7x365. Bitdefender offers a service that provides all the protections of the MDR service along with comprehensive dark web detection and response. Bitdefender MDR Foundations offers MSPs a Managed Detection & Response service featuring 24x7 monitoring, threat hunting and rapid response. Bitdefender Offensive Services provide organizations with Penetration Testing and Red Teaming services.[1][12]

Bitdefender sells a product to discover and manage public cloud configurations and identities to reduce risk and accelerate compliance. Bitdefender sells security for cloud workloads in Amazon that uses the same web console as physical, virtual, and any other cloud environments. Bitdefender sells external attack surface management that discovers, monitors and secures internet-facing assets, shadow IT, misconfigured services, and forgotten subdomains. Bitdefender sells a product that automates compliance monitoring and real-time evidence collection to stay audit-ready. Bitdefender sells email protection that combines cloud-native, API-enabled protection and a secure email gateway (SEG) in one solution. Bitdefender offers automatic patch management delivered from the GravityZone Console. Bitdefender offers operating system native encryption management for Windows and Mac. Bitdefender sells an on-device mobile security solution for iOS, Android and ChromeOS devices. Bitdefender GravityZone PHASR is described as delivering dynamic, personalized hardening that reduces attack surface without hurting productivity. PHASR stands for Proactive Hardening and Attack Surface Reduction. Bitdefender Advanced Threat Intelligence collects and correlates data from sensors across the globe.

For service providers, Bitdefender sells security for Managed Service Providers with monthly usage-based licensing and a single web console to protect all customers. GravityZone MSP Security Solutions has three offerings called Secure, Secure Plus, and Secure Extra.

Florin Talpes, Bitdefender's Co-founder and Chief Executive Officer, founded with his wife Mariuca one of the first private software companies in post-communist Romania, which grew to become Bitdefender. Andrei Florescu is President and GM of the Business Solutions Group at Bitdefender. Bitdefender says it has been advancing AI in cybersecurity since 2008. Bitdefender says its technology is licensed by more than 150 technology and cybersecurity brands. Bitdefender says its team is behind over 540 patents. Bitdefender says over half of its employees are dedicated to research and development. Bitdefender says it has headquarters, research hubs, and security operations and sales and business centers across multiple continents.[5][6][12][15][16]

Bitdefender on the record

Sources

Bitdefender full record

  1. [1]BusinessBitdefender · bitdefender.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]CompanyBitdefender · bitdefender.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Bitdefender GravityZone Cybersecurity PlatformBitdefender · undated page, accessed October 23, 2026 · Tier A
  4. [4]About Bitdefender: Innovation in Cybersecurity since 2001Bitdefender · undated page, accessed October 23, 2026 · Tier A
  5. [5]Key Findings from the Bitdefender 2025 Cybersecurity Assessment ReportBitdefender Business Insights · published June 24, 2025 · Tier A
  6. [6]Bitdefender Threat Intelligence Solutions – Bitdefender TechZoneBitdefender TechZone · undated page, accessed October 23, 2026 · Tier A
  7. [7]Bitdefender Appoints Frank Koelmel as Chief Revenue Officer for its Business Solutions GroupBitdefender · published May 6, 2026 · Tier A
  8. [8]Bitdefender GravityZone XDR Reviews & Product Details - G2G2 · undated page, accessed October 23, 2026 · Tier C
  9. [9]Bitdefender Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed October 23, 2026 · Tier C
  10. [10]Bitdefender - Global Leader in Cybersecurity SoftwareBitdefender · undated page, accessed November 4, 2026 · Tier A
  11. [11]Minimizing False Positives – Bitdefender TechZoneBitdefender TechZone · undated page, accessed November 4, 2026 · Tier A
  12. [12]About Bitdefender Business Solutions GroupBitdefender · undated page, accessed November 4, 2026 · Tier A
  13. [13]Our Leadership Team: Driving the Future of CybersecurityBitdefender · undated page, accessed November 4, 2026 · Tier A
  14. [14]Bitdefender - All Business Products ListBitdefender · undated page, accessed November 4, 2026 · Tier A
  15. [15]Join Bitdefender. Protect the Future.Bitdefender · undated page, accessed November 4, 2026 · Tier A
  16. [16]Bitdefender Ultimate Small Business SecurityBitdefender · undated page, accessed November 4, 2026 · Tier A
  17. [17]Bitdefender Launches GravityZone AI Visibility and Control, a Powerful Solution for Securing AI Use in the EnterpriseBusiness Wire · published September 23, 2026 · Tier A

UnderDefense full record

  1. [1]underdefense.comUnderDefense · underdefense.com · undated page, accessed October 26, 2026 · Tier A
  2. [2]Compliance PricingUnderDefense · undated page, accessed November 10, 2026 · Tier A
  3. [3]Agentic AI SOC & Compliance Automation Platform | UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  4. [4]Elastic Cloud Pricing 2026: Serverless, Hosted, and SIEMUnderDefense · undated page, accessed November 10, 2026 · Tier A
  5. [5]Cloudflare Pricing 2026: WAF, Zero Trust, and EnterpriseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  6. [6]Palo Alto Networks Pricing 2026: Firewalls, SASE, and XDRUnderDefense · undated page, accessed November 10, 2026 · Tier A
  7. [7]2025 MXDR Pricing Guide: Choosing the Right MXDR providerUnderDefense · undated page, accessed November 10, 2026 · Tier A
  8. [8]Episode 4: Cyber Resilience 201 — AWS Cloud Security - UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  9. [9]E-Mail Under Attack - UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  10. [10]UnderDefense MAXI Reviews & Product DetailsG2 · undated page, accessed November 10, 2026 · Tier C

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