What do HackenProof and Millennium Corporation sell?

HackenProof sells Bug Bounty, Penetration Testing, Crowdsourced Audit and CTF Platform. Millennium Corporation sells Zero Trust.

Are HackenProof and Millennium Corporation in the same category?

They share Penetration testing and red team services. HackenProof's primary category is Bug bounty and crowdsourced testing and Millennium Corporation's is Penetration testing and red team services.

Where are HackenProof and Millennium Corporation headquartered?

Millennium Corporation is headquartered in Arlington, VA, United States.

Vendor comparison · 2 companies

HackenProof vs Millennium Corporation

HackenProof is a security company that connects projects with verified security researchers who hunt for vulnerabilities across Web3 and Web2, and provides penetration testing services for web and mobile apps, APIs, and cloud infrastructure. Millennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector. CISO Tribune files both under Penetration testing and red team services. 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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HackenProof vs Millennium Corporation: Products, Customers and Funding Compared
What it sells
	HackenProofHackenProof is a security company that connects projects with verified security researchers who hunt for vulnerabilities across Web3 and Web2, and provides penetration testing services for web and mobile apps, APIs, and cloud infrastructure.hackenproof.com	Millennium CorporationMillennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector.millgroupinc.com
What it sells	Bug Bounty^[1][2][7]A public or private bug bounty program where the customer sets scope and rewards and HackenProof handles triage, validation, and payouts. Penetration Testing^[1][3]Penetration testing for web and mobile apps, APIs, and cloud infrastructure. Crowdsourced Audit^[1][5]An open audit contest where verified security researchers look for vulnerabilities in the customer's code. CTF Platform^[6]Capture the Flag events designed and run for enterprises and government agencies.	Zero Trust^[7]Adversarial testing of networks to confirm they are Zero Trust.
Categories
Categories	Bug bounty and crowdsourced testing (primary category) Penetration testing and red team services Vulnerability management	Penetration testing and red team services (primary category) MDR and managed SOC Security consulting and advisory
Headquarters
Headquarters	Not stated on its pages	Arlington, VA, United States^[1][4]
Founded
Founded	Not stated on its pages	Not stated on its pages
Ownership and funding
Ownership and funding	Not stated on its pages	Not stated on its pages
Named customers
Named customers	Not stated on its pages	Not stated on its pages
Recent news
Recent news	Not stated on its pages	Not stated on its pages
G2 and Gartner Peer Insights
G2 and Gartner Peer Insights	G2: Not stated on its pages Gartner Peer Insights: Not stated on its pages	G2: Not stated on its pages Gartner Peer Insights: Not stated on its pages
Who it fits
Who it fits	Not written yet	Not written yet
Last verified
Last verified	November 13, 2026	October 30, 2026

Where they overlap

HackenProof and Millennium Corporation are both filed under Penetration testing and red team services.

Where they differ, field by field

HackenProof's primary category is Bug bounty and crowdsourced testing; Millennium Corporation's is Penetration testing and red team services.
HackenProof is also filed under Vulnerability management. Millennium Corporation is also filed under MDR and managed SOC and Security consulting and advisory.
HackenProof lists Bug Bounty, Penetration Testing, Crowdsourced Audit and CTF Platform. Millennium Corporation lists Zero Trust.
Millennium Corporation is headquartered in Arlington, VA, United States.

What it sells: HackenProof

What Bug Bounty does^[1][2][7]: Customers can launch a public or private bug bounty program on HackenProof. Built-in KYC workflows verify researcher identities for regulated industries. Rewards can be paid in stablecoins, fiat, or native tokens through HackenProof's payout management services.
What Penetration Testing does^[1][3]: HackenProof offers white-box, grey-box, and black-box penetration testing. A HackenProof pentest starts within 24 hours of the customer's request.
What Crowdsourced Audit does^[1][5]: A HackenProof crowdsourced audit is an open contest where thousands of verified security researchers compete to find vulnerabilities in the customer's code. HackenProof audits support languages including Solidity, Rust, Move, Go, C#, C++, Java, Python, and Cairo.
What CTF Platform does^[6]: HackenProof's CTF platform designs and runs Capture the Flag (CTF) events for enterprises and government agencies. HackenProof adapts every CTF to the experience level of its participants, from beginners to experienced security professionals.

What it sells: Millennium Corporation

What Zero Trust does^[7]: Millennium Corporation uses an adversarial mindset to test networks and confirm that they are Zero Trust. The testing checks that users can only access authorized files, that an unauthorized user cannot grant themselves additional permissions, and that the network is constantly validating every user at every interaction.

Questions about HackenProof and Millennium Corporation

What do HackenProof and Millennium Corporation sell?: HackenProof sells Bug Bounty, Penetration Testing, Crowdsourced Audit and CTF Platform. Millennium Corporation sells Zero Trust.
Are HackenProof and Millennium Corporation in the same category?: They share Penetration testing and red team services. HackenProof's primary category is Bug bounty and crowdsourced testing and Millennium Corporation's is Penetration testing and red team services.
Where are HackenProof and Millennium Corporation headquartered?: Millennium Corporation is headquartered in Arlington, VA, United States.

About HackenProof

HackenProof is a security company that connects projects with verified security researchers who hunt for vulnerabilities across Web3 and Web2, and provides penetration testing services for web and mobile apps, APIs, and cloud infrastructure. On the HackenProof platform, the customer sets the scope and rewards, and HackenProof handles triage, validation, and payouts. HackenProof researchers test targets that range from DeFi protocols to fintech, healthcare, and e-commerce.^[1][3]

HackenProof customers can launch a public or private bug bounty program. HackenProof includes built-in KYC workflows that verify researcher identities and meet compliance requirements in regulated industries. HackenProof validates vulnerability reports before they reach the customer team, filtering out duplicates and low-quality submissions. HackenProof report encryption uses end-to-end encryption with the customer's own PGP keys. HackenProof uses an AI-powered triage assistant built on the Model Context Protocol (MCP) to help process vulnerability reports. Customers can reward hackers in stablecoins, fiat, or native tokens through HackenProof's payout management services. HackenProof connects to existing workflows through webhooks, API, MCP, and 100+ supported communication, development, cloud, and automation applications. HackenProof can stream validated vulnerability reports straight into an issue tracker, chat, and on-call rotation.^[1][4]

HackenProof offers white-box, grey-box, and black-box penetration testing and delivers a report on real security risks. A HackenProof pentest starts within 24 hours of the customer's request. HackenProof assigns vetted experts with relevant experience in the customer's stack. HackenProof runs the pentest on its Vulnerability Coordination Platform, where customers review validated reports, leave comments, and discuss findings with testers directly. Once fixes are in place, HackenProof verifies them, confirms closure, and delivers a branded final report ranking all findings by severity.^[1][3]

HackenProof penetration testing covers several kinds of systems. HackenProof tests web and mobile applications for authentication and session flaws, business logic abuse, and platform-specific risks on iOS and Android. HackenProof tests REST, GraphQL, and other API architectures for broken authorization, injection points, rate-limiting gaps, and data exposure. HackenProof tests AWS, GCP, Azure, and hybrid environments for misconfigurations, identity and access management weaknesses, exposed storage, and lateral movement paths between services. HackenProof assesses internal and external network infrastructure for exposed services, misconfigurations, and privilege escalation paths. HackenProof tests blockchain applications, dApps, smart contracts, bridges, and decentralized infrastructure for vulnerabilities that could impact funds, protocol functionality, or user assets. HackenProof tests AI-powered systems, from LLM applications to autonomous agents, for prompt injection, data leakage, model abuse, excessive agency, and insecure tool integrations.^[3]

HackenProof describes its private audit as an expert-led security code review for projects that need strict confidentiality before a fundraise, launch, or regulatory review. A HackenProof crowdsourced audit is an open contest where thousands of verified security researchers compete to find vulnerabilities in the customer's code. HackenProof audits support languages including Solidity, Rust, Move, Go, C#, C++, Java, Python, and Cairo.^[1]

HackenProof's CTF platform designs and runs Capture the Flag (CTF) events for enterprises and government agencies. A Capture The Flag event is a cybersecurity competition where participants solve hands-on challenges across web exploitation, cryptography, OSINT, reverse engineering, digital forensics, and smart contract security. HackenProof adapts every CTF to the experience level of its participants, from beginners to experienced security professionals. HackenProof combined its expertise with Hack The Box to create a specialized blockchain security CTF. HackenProof organized the National CTF in partnership with the Defence Intelligence of Ukraine (GUR). For banks and financial institutions, HackenProof runs private, invite-only CTFs.

The Security Expansion Program launched on HackenProof connects Sui ecosystem projects with researchers, bug bounty programs, and audits. HackenProof ran an audit contest for TipRun's peer-to-peer cricket prediction exchange. HackenProof carried out a private audit of WrappedCBDC's cNGN stablecoin on Canton.^[3][7]

HackenProof on the record

About Millennium Corporation

Millennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector. Millennium Corporation describes its philosophy as anchored around the concept of full-spectrum operations. Millennium Corporation describes itself as a founder-led company.^[2][5]

Millennium Corporation works with the armed services to protect the devices, data, and networks they use. Millennium Corporation helps the Intelligence Community securely collect, analyze, and act on large quantities of data. In federal civilian agencies, Millennium Corporation helps protect highly sensitive and mission critical data. The software engineers of Millennium Corporation craft custom solutions to meet a client's specific needs.

Millennium Corporation analyzes a client's cyber footprint to identify vulnerabilities. Red team assessments from Millennium Corporation normally contain a physical security aspect. During an assessment, Millennium Corporation operators may attempt to physically infiltrate a server room in order to compromise the target organization's network. Millennium Corporation says it has seen through hundreds of assessments that physical security enables cybersecurity and vice versa. Millennium Corporation offers a debrief and report after an assessment has concluded, explaining how its operators infiltrated the client's facility and what the client could have done differently to stop them.^[5]

Millennium Corporation provides red and blue team training, builds cyber ranges, and plays the bad guys as an Opposing Force. Millennium Corporation names k>fivefour as its partner for hands-on cyber operations training for cybersecurity professionals. Millennium Corporation determines how an adversary would most likely attack and then develops protection and training plans. Millennium Corporation sets up and conducts trainings. For in-house trainings, Millennium Corporation helps schedule and track which personnel have received them.^[2][6]

Millennium Corporation uses an adversarial mindset to test networks and confirm that they are Zero Trust. When new systems are added, Millennium Corporation does upfront work to make certain they will integrate with existing systems. Millennium Corporation then tests the new systems to protect them from black hat actors. Millennium Corporation has experience in frameworks such as NIST CSF, RMF, and ISO 27001, and helps clients develop and maintain a GRC program. Millennium Corporation applies red and blue team capabilities and an adversarial approach to attack simulation to protect a client's most valuable assets. Millennium Corporation integrates commercial networking technologies into expeditionary solutions, including a hybrid fiber and wireless network that enables fixed and mobile connectivity.^[7]

Millennium Corporation operates a secure 10,000 sq.ft. facility that includes training and the Cyber Threat Operations Center.^[2][6][7]

Millennium Corporation on the record

Sources

HackenProof full record

[1]hackenproof.comHackenProof · hackenproof.com · undated page, accessed November 13, 2026 · Tier A
[2]Bug Bounty Platform Trusted by 400+ Projects | HackenProofHackenProof · undated page, accessed November 13, 2026 · Tier A
[3]Penetration Testing Services | HackenProofHackenProof · undated page, accessed November 13, 2026 · Tier A
[4]Integrations | HackenProofHackenProof · undated page, accessed November 13, 2026 · Tier A
[5]Cybersecurity Audit Services for Web2 & Web3 Projects | HackenProofHackenProof · undated page, accessed November 13, 2026 · Tier A
[6]CTF Platform for Enterprises & Government | HackenProofHackenProof · undated page, accessed November 13, 2026 · Tier A
[7]Sui Security Expansion Program – HackenProof & Sui FoundationHackenProof · undated page, accessed November 13, 2026 · Tier A
[8]Customer Proof — Case Studies | HackenProofHackenProof · undated page, accessed November 13, 2026 · Tier A

Millennium Corporation full record

[1]Millennium corporation expands cyber portfolio by acquiring maxisiq business divisionMillennium Corporation · millgroupinc.com · published May 3, 2023 · Tier A
[2]millgroupinc.comMillennium Corporation · millgroupinc.com · undated page, accessed October 30, 2026 · Tier A
[3]Why Millennium - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
[4]Home - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
[5]Your Guide to Red Team Physical Security Assessments - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
[6]Cybersecurity Training - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
[7]Enterprise Services - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A

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