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Startups defending the systems everyone else is racing to build, including the new attack surface that AI itself introduces.

20 articles · Updated 30 November 2025

What counts as Security

Security covers startups defending the systems everyone else is racing to build, including the new attack surface AI itself introduces. On this hub that means AI security and agentic security operations, software supply chain and connected product security, identity verification and fraud, data protection, and consumer privacy products built by people who were attacked first.

Two things AI did to security

The newest companies on this hub split cleanly. One group treats AI as a new thing to defend. Noma Security provides enterprise guardrails covering AI discovery and security posture, on the premise that every model an organisation adopts widens the attack surface.

The other treats AI as the defender. Exaforce runs a full-lifecycle AI security operations platform that automates detection, triage, investigation and response - and, notably, gives a security operations capability to teams that never had one.

The supply chain is the perimeter

Endor Labs works on the risk that arrives with open source dependencies, and frames it as a prioritisation problem rather than a scanning one - the interesting claim being that it makes developers faster rather than slower. Cybellum applies the same thinking to physical goods, letting manufacturers manage security in connected products they have already shipped.

Most attacks go through a person

Several of the strongest profiles here refuse to treat security as a systems problem. Picnic protects against social engineering directly, on the argument that it is the biggest threat vector in cyber today. Phalanx works on human error and on the simple question of who is accessing which files.

Founded by the victim

Efani is the clearest example of a pattern worth noticing on this hub - founder Haseeb Awan was SIM swapped four times, and built a security-first mobile network because no existing carrier would solve it. That origin story is common enough in security that it is almost a category of its own.

Privacy as a consumer product

Atsign wants to invert how app data is held, as free open-source infrastructure. FindMyData helps people reclaim personal information already out there, Prisidio secures the documents a household actually needs, and Sentrya takes on the most everyday version of the problem - the inbox.

Security for companies without a security team

Judy Security and Cyvatar are both built on the same observation: enterprise security tools assume staff to operate them. Their answer is to bundle the platform with the operating, whether through automation or through people.

Security startups we have profiled, by what they defend
CompanyWhat it doesDefends
Noma Security Guardrails for enterprise AI, covering discovery through to security posture management.AI systems
Exaforce Full-lifecycle AI security operations platform automating detection, triage, investigation and response.Security operations
Endor Labs Gives DevSecOps teams the context to prioritise open source risk and secure CI/CD pipelines.Software supply chain
Cybellum Product security management so manufacturers can build and maintain secure connected devices.Connected products
Judy Security All-in-one AI-backed cybersecurity platform purpose-built for small and medium businesses.Small business
Cyvatar End-to-end cybersecurity combining platform technology with human expertise.Small business
Kasada Defends against advanced persistent bot attacks across web, mobile and API channels.Bots
Sumsub AI-driven identity verification for onboarding clients under AML and KYC rules.Identity
Shufti Pro Global identity verification offering KYC and AML solutions to financial businesses.Identity
FiVerity Cyber fraud defence for financial institutions, aimed at where fraud and cyberattack converge.Fraud
Cigent Data security approach built to stop ransomware and data theft outright.Data
Sotero Next-generation zero trust platform for protecting sensitive data.Data
Phalanx Tackles human error and the lack of visibility into who is accessing which files.Data
Prisidio Cloud app for securely collecting, organising and sharing a person's most essential documents.Personal records
Picnic Proactively protects people and companies against social engineering attacks.Social engineering
Efani Security-first mobile network founded in 2019 by Haseeb Awan after four SIM swap attacks.Consumer privacy
Atsign Free open-source platform giving users control over their app data and privacy.Consumer privacy
FindMyData Privacy service letting people take back control over their personal information.Consumer privacy
Sentrya Stops spam and junk email reaching a personal Gmail inbox.Consumer privacy

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Frequently asked questions

What does the Security hub cover?

Six areas - AI security and security operations, software supply chain and connected product security, identity verification and fraud, data protection, small business cybersecurity, and consumer privacy tools.

How is AI changing what these companies build?

In two opposite directions. Noma Security treats AI as the thing that needs defending, providing guardrails for enterprise AI from discovery through posture management. Exaforce treats AI as the defender, running a full-lifecycle agentic platform that automates detection, triage, investigation and response.

Is anyone here focused on small businesses?

Two companies specifically. Judy Security builds an all-in-one AI-backed platform purpose-made for SMBs, and Cyvatar pairs its platform with human expertise. Both exist because enterprise security tooling assumes a security team that a smaller company does not have.

What is the most common attack these startups defend against?

Attacks that target people rather than systems. Picnic works on social engineering specifically, Phalanx on human error and file access visibility, and Efani was founded by someone who had been SIM swapped four times.

Are there startups working on identity and fraud?

Yes, and it is the most commercially mature cluster here. Sumsub and Shufti Pro both do AI-driven identity verification for KYC and AML onboarding, FiVerity defends financial institutions where fraud and cyberattack converge, and Kasada blocks bots across web, mobile and API.