CISO Tribune

Vendor comparison · 2 companies

Hadrian vs Red Sift

Hadrian is an agentic AI offensive security platform that continuously discovers an organization's external attack surface and tests it for exploitable exposures. Red Sift helps security and IT teams embrace the security protocols that keep the internet safe, such as DMARC, SPF, DKIM and TLS. CISO Tribune files both under External attack surface management. 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.

Change the companies

Up to four companies side by side.

  • Hadrian
  • Red Sift
Hadrian vs Red Sift: Products, Customers and Funding Compared
HadrianHadrian is an agentic AI offensive security platform that continuously discovers an organization's external attack surface and tests it for exploitable exposures.hadrian.ioRed SiftRed Sift helps security and IT teams embrace the security protocols that keep the internet safe, such as DMARC, SPF, DKIM and TLS.redsift.com
What it sells
  • Atlas[1][4][5][6][7]Atlas continuously maps a company's external attack surface and validates exposures. Atlas discovers every domain, DNS record, IP, certificate, cloud service and app a company exposes.
  • Nova[1][4][5][9]Nova is an agentic penetration test powered by AI. Once pointed at an application, Nova's AI hacker agents work through it step by step until they can show real impact.
  • Red Sift OnDMARC[2][9]Email authentication product for DMARC enforcement.
Categories
Headquarters
Not stated on its pagesLondon, United Kingdom[5][6]
Founded
2021[2]2015[3]
Ownership and funding
Privately held[5][6][11][16]Privately held[2][4][15]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • May 20, 2026Hadrian released OpenHack, a tool for AI-powered source code review.[14]
  • April 2, 2026Hadrian announced that its MCP server is live.[15]
  • October 21, 2026Red Sift notified customers with potentially affected hosts after scanning the Hardenize customer base for PHP-backed hosts, following the PHP security fixes.[18]
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[16]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 4, 2026[15]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Hadrian sells an agentic AI offensive security platform to modern security teams. Hadrian describes mapping the external attack surface of every company in a group, including new acquisitions and legacy infrastructure. Hadrian states that role-based access lets each subsidiary or business unit see and act on its own assets while the group security team keeps the full view. Hadrian says many customers use the platform as their continuous baseline and bring in manual testers for targeted deep dives. Hadrian is delivered from the cloud.From its own pages, the company sells mainly to security and IT teams that want to adopt protocols such as DMARC, SPF, DKIM and TLS. Save the Children also appears as a customer story for OnDMARC. The about page says the company works across EMEA, APAC and the US.
Last verified
October 30, 2026September 27, 2026

Where they overlap

  • Hadrian and Red Sift are both filed under External attack surface management.
  • Both are privately held.

Where they differ, field by field

  • Hadrian's primary category is External attack surface management; Red Sift's is Email authentication and DMARC.
  • Hadrian is also filed under Breach simulation and automated pen-testing and Exposure prioritisation and CTEM. Red Sift is also filed under Digital risk protection and Machine identity and PKI.
  • Hadrian lists Atlas and Nova. Red Sift lists Red Sift OnDMARC.
  • Red Sift is headquartered in London, United Kingdom.
  • Hadrian was founded in 2021. Red Sift was founded in 2015.

What it sells: Hadrian

What Atlas does[1][4][5][6][7]
Atlas discovers assets, technologies and service points, then uses agentic AI to confirm which exposures are actually exploitable. Atlas runs passive scans every hour, and event-driven testing starts automatically when a new asset or change is detected. Atlas pricing is based on the total asset count. Atlas offers two add-ons at additional cost: mergers and acquisitions assessment and infostealers credential leak detection.

What it sells: Red Sift

What Red Sift OnDMARC does[2][9]
Red Sift OnDMARC gives instant visibility into a domain's email security posture and a clear path to DMARC enforcement. It lets customers configure SPF, DKIM, DMARC, BIMI and MTA-STS in one place. Red Sift says it helps organizations reach full DMARC enforcement in just 6 to 8 weeks.

Questions about Hadrian and Red Sift

What do Hadrian and Red Sift sell?
Hadrian sells Atlas and Nova. Red Sift sells Red Sift OnDMARC.
Are Hadrian and Red Sift in the same category?
They share External attack surface management. Hadrian's primary category is External attack surface management and Red Sift's is Email authentication and DMARC.
Where are Hadrian and Red Sift headquartered?
Red Sift is headquartered in London, United Kingdom.
When were Hadrian and Red Sift founded?
Hadrian was founded in 2021. Red Sift was founded in 2015.
Who owns Hadrian and Red Sift?
Hadrian is privately held. Red Sift is privately held.
Who are Hadrian and Red Sift sold to?
From its own pages, Hadrian sells an agentic AI offensive security platform to modern security teams. From its own pages, the company sells mainly to security and IT teams that want to adopt protocols such as DMARC, SPF, DKIM and TLS.
What have Hadrian and Red Sift announced recently?
May 20, 2026: Hadrian released OpenHack, a tool for AI-powered source code review. October 21, 2026: Red Sift notified customers with potentially affected hosts after scanning the Hardenize customer base for PHP-backed hosts, following the PHP security fixes.

About Hadrian

Hadrian is an agentic AI offensive security platform that continuously discovers an organization's external attack surface and tests it for exploitable exposures. Hadrian's Atlas and Nova products run on one platform, so exposures, pentests and evidence sit in one place. Atlas gives breadth across everything a company exposes, and Nova gives depth in the application that matters. Hadrian runs from the cloud and is ready in minutes.[1][3][4][7]

Atlas continuously maps a company's external attack surface and validates exposures. Atlas discovers assets, technologies and service points, then uses agentic AI to confirm which exposures are actually exploitable. Atlas discovers every domain, DNS record, IP, certificate, cloud service and app a company exposes, then tests all of it the way an attacker would. Atlas maps outward from the organization: subsidiaries and acquisitions, the domains each one registered, then every subdomain, IP, certificate and cloud host under them. Atlas starts from a few apex domains, maps how everything connects, flags what changed and proves which exposures are real. Atlas runs passive scans every hour, and event-driven testing starts automatically when a new asset or change is detected. Atlas matches a new CVE to the assets running the affected version, tests every one of them, and tells the customer which are really exposed.[7]

Hadrian's Orchestrator AI uses machine learning and pattern recognition to scan the internet for exposed assets tied to an organization, including Shadow IT. Hadrian continuously scans the internet to find forgotten subdomains, cloud instances and legacy servers that belong to an organization but are not in its official inventory. Hadrian's platform safely simulates real-world attack techniques to validate if a vulnerability is actually exploitable in the customer's specific environment. Hadrian only flags verified risks that have a confirmed path to compromise. Hadrian's agents safely test what they find and only raise what holds up, with the request, the response and the fix, and they check the fix when a risk is closed.[7][8]

Nova is an agentic penetration test powered by AI that performs the same techniques a skilled human pentester would, including reconnaissance, exploitation and lateral movement. Nova's agents sign in as every role, learn how an app's business logic works and chain small steps into real impact. Nova's testing stays within the scope the customer sets, at the pace the customer chooses, without changing a single record. Nova customers receive access to the Hadrian platform to see results and get a compliance-ready pdf report. Atlas's asset discovery and exposure mapping feeds directly into Nova, so penetration tests are automatically scoped against the real attack surface.[4][9]

Hadrian's hacker agents test the external attack surface continuously, chain what they find into attack paths, and report only the paths they can prove. Hadrian does not replace a scoped red team exercise, and internal networks, social engineering and physical access stay with the customer's human red team.[10]

Hadrian maps the external attack surface of every company in a group, including new acquisitions and legacy infrastructure, and starts testing it as soon as the deal closes. Hadrian uses ownership signals from DNS, certificates and registration records, and a customer's team can confirm or correct attribution in the platform. Role-based access lets each subsidiary or business unit see and act on its own assets, while the group security team keeps the full view. Hadrian connects to multiple cloud environments with a few clicks, providing a centralized view of exposed assets. Hadrian identifies exposed cloud assets and misconfigurations that could enable lateral movement and privilege escalation. Hadrian's ML algorithms prioritize risks based on business relevance, asset attractiveness, discoverability, impact and exploitation ease.[12]

Hadrian allows teams to assign leads, share risk details with third parties, track remediation progress and collaborate in a shared space. Hadrian's risk details include severity, impact, proof of concept and remediation steps.[1][3][9][13]

Hadrian on the record

Sources

Hadrian full record

  1. [1]hadrian.ioHadrian · hadrian.io · undated page, accessed October 30, 2026 · Tier A
  2. [2]CompanyHadrian · hadrian.io · undated page, accessed October 30, 2026 · Tier A
  3. [3]Agentic Penetration Testing | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  4. [4]Offensive Security Platform: Atlas + Nova | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  5. [5]Know your attack surface, pentest it continuously | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  6. [6]Atlas: Continuous Attack Surface Management | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  7. [7]Continuous Attack Surface Management | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  8. [8]Adversarial Exposure Validation (AEV) | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  9. [9]Nova: On-Demand Agentic Pentesting | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  10. [10]Automated Red Teaming for Your Attack Surface | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  11. [11]Acquisition and Subsidiary Attack Surface | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  12. [12]Cloud Exposure Visibility & Control | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  13. [13]Threat Exposure Management (CTEM) | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  14. [14]Hadrian releases OpenHack for AI vulnerability discoveryHadrian · published May 20, 2026 · Tier A
  15. [15]Hadrian's MCP server is liveHadrian · published April 2, 2026 · Tier A
  16. [16]Hadrian Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

Red Sift full record

  1. [1]redsift.comRed Sift · redsift.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]The Red Sift Pulse PlatformRed Sift · undated page, accessed September 27, 2026 · Tier A
  3. [3]Cloud email security brand protection startup red sift rises 54mSiliconANGLE · siliconangle.com · published February 24, 2022 · Tier B
  4. [4]6977295001Austin American-Statesman · statesman.com · published March 4, 2022 · Tier B
  5. [5]Red sift joins future fifty 2026 cohort unveiled by chancellor at downing streetRed Sift via EIN Presswire · thestarpress.com · published March 19, 2026 · Tier B
  6. [6]Red siftThe Wealth Mosaic · thewealthmosaic.com · undated page, accessed September 27, 2026 · Tier C
  7. [7]Red Sift | Creating a Fundamentally Safer Internet with Proactive SecurityRed Sift · undated page, accessed October 27, 2026 · Tier A
  8. [8]Proactive, intelligent security for every organization.Red Sift · undated page, accessed October 27, 2026 · Tier A
  9. [9]Red Sift OnDMARC | Stop Email Spoofing FastRed Sift · undated page, accessed October 27, 2026 · Tier A
  10. [10]OnDMARC Pricing | Plans for SMB to Enterprise + Free TrialRed Sift · undated page, accessed October 27, 2026 · Tier A
  11. [11]Stop lookalike domains before they damage your brandRed Sift · undated page, accessed October 27, 2026 · Tier A
  12. [12]Bird & Bird strengthens trust in legal communications with layered email and domain protectionRed Sift · undated page, accessed October 27, 2026 · Tier A
  13. [13]Find and fix issues 10x faster with Red Sift RadarRed Sift · undated page, accessed October 27, 2026 · Tier A
  14. [14]Red Sift Certificates Lite | Free Certificate MonitoringRed Sift · undated page, accessed October 27, 2026 · Tier A
  15. [15]Red Sift OnDMARC Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed October 27, 2026 · Tier C
  16. [16]How to Price and Package DMARC Services for Your MSP | Red SiftRed Sift · undated page, accessed November 4, 2026 · Tier A
  17. [17]DMARC solutions for healthcare organizationsRed Sift · undated page, accessed November 4, 2026 · Tier A
  18. [18]Critical PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619 | Red SiftRed Sift · published October 21, 2026 · Tier A

Spot a factual error? Request a correction.