Asymmetric Security
Entrepreneur First '25London, GB · Founded 2025 · 4 known investors
Asymmetric is an AI-native digital forensics and incident response (DFIR) firm that pairs forensic analysts with in-house AI systems to investigate cybersecurity incidents. It offers around-the-clock incident intake, containment guidance, threat hunts, and configuration reviews to support clients' technical and legal teams.
Also known as Asymmetric · Asymmetric Security Inc.
Founders & leadership
Asymmetric Security was founded in 2025 by Alexis Carlier and Zainab Ali Majid.


Investors · 4
Also in the syndicate · 3
Company profile
researched Aug 2026Asymmetric Security is a digital forensics and incident response (DFIR) company that describes itself as the first AI-native firm in the category. It combines human forensic analysts with in-house AI systems and frontier AI models to collect and analyze evidence during cybersecurity incidents, with the stated aim of reducing investigation time and cost relative to traditional DFIR providers.
The service workflow advertised by the company covers 24/7 analyst availability and incident intake, a scoping call led by a DFIR lead, initial findings and containment guidance within 24 hours, and post-investigation threat hunts and configuration reviews. Platform capabilities described at launch include autonomous "rapid log pulls" of evidence across email, identity and cloud applications, AI-driven analysis of large volumes of data points to reconstruct attack timelines and scope, human-in-the-loop validation in which expert responders review findings and adjudicate edge cases and risk, and defensive recommendations to prevent repeat attacks.
The company's initial focus is business email compromise (BEC) investigations, with stated plans to expand into insider threat investigations, ransomware and nation-state attacks. It also builds evaluations, benchmarks and learning environments derived from real-world attacks, both to improve its own models and, it says, to contribute to frontier AI labs' cyberdefense capabilities. Its stated mission is to "accelerate AI cyberdefense" ahead of what it frames as the security challenges of the AGI era.
Founding story
Asymmetric Security was founded in 2025 by Zainab Ali Majid, Alexis Carlier and Pippa Thompson. The founders' framing centers on the observation that security operations centers lack analytic capacity — most of the thousands of alerts received get only surface-level review and only a small fraction are deeply investigated — and that manual BEC investigations typically require 40+ hours of reading emails and logs. They argue automated digital forensics can make deep investigation ubiquitous and reduce the number of attacks that go undetected.
Business model
Services-led model: the company sells expert-delivered incident response and forensic investigation engagements that are executed on its own AI platform. Susa Ventures characterized the investment as an expression of a "full-stack AI services thesis," in which the services business is viewed as both a standalone revenue line and a distribution channel into the enterprise security market.
Fee-based professional services for forensic investigations and incident response engagements, with additional post-investigation offerings including threat hunts and configuration reviews. Sources do not disclose pricing, contract structure or revenue figures.
Traction
At launch in January 2026 the company said its platform had already accelerated responses for more than 100 attacks. Its pre-seed round was described as oversubscribed. No revenue, customer names or headcount figures are disclosed in the available sources.
Latest developments
On 21-22 January 2026 the company emerged from stealth with a $4.2 million pre-seed round led by Susa Ventures, with Halcyon Ventures, Overlook Ventures and angels including Charlie Songhurst, Matt Clifford and Geoff Ralston. Funds are being used to hire across engineering and incident response, with planned service expansion into insider threat, ransomware and nation-state investigations.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Positions itself as the first AI-native DFIR company and, per its investor, as a differentiated entrant in the cyber incident response market combining incident response and AI expertise. It competes with established forensic and incident response providers; its team members are drawn from firms including CrowdStrike, Palo Alto Networks, S-RM and Stroz Friedberg, which the company also cites as reference points for the incumbent market.
Stated differentiators are speed and depth at lower cost: initial findings and containment guidance within 24 hours, analysts claimed to work 2x faster than other firms through use of frontier AI, analysis spanning 1M+ events from a wider range of data sources, and an overall claim of reducing investigation time and cost by 10x. The company emphasizes that every investigation is led by technical experts with backgrounds at leading cyber firms, combining automation with human-in-the-loop judgement on edge cases.
Technology
The platform uses frontier AI models to autonomously collect artifacts and logs across email, identity and cloud applications, then analyze large volumes of data points to reconstruct the timeline and scope of an attack, generate defensive recommendations, and surface findings to human responders for validation. The company additionally builds realistic evaluations, benchmarks and learning environments based on the real-world attacks it investigates, using them to test and improve its AI cyberdefense capabilities.
Go-to-market
Direct, inbound-oriented incident response engagement: the website offers a 24/7 "report an incident" hotline with analysts on standby, followed by an intake and scoping call with a DFIR lead. Post-incident services such as threat hunts and configuration reviews create follow-on engagement. Public launch was supported by a press release and coverage in trade and funding media.
Enterprises experiencing cybersecurity incidents, particularly business email compromise, and their internal technical and legal teams; the launch materials reference corporate America and the enterprise security market, and the company cites Fortune 500-scale compromise investigation experience.
Geography
Offices in London, United Kingdom and San Francisco, California, described as a transatlantic footprint. Launch messaging emphasizes US enterprise cybercrime exposure, citing FBI IC3 figures.
History
Founded in 2025 by alumni of Oxford, Stanford, Cambridge, RAND, Palo Alto Networks and CrowdStrike, the company operated in stealth before publicly launching on 21 January 2026 alongside a $4.2 million oversubscribed pre-seed round. By that point it said its platform had already supported responses to more than 100 attacks. It operates offices in London and San Francisco.
Risks & controversies
Performance claims (10x cost/time reduction, 2x faster analysts, 1M+ events) originate from the company's own materials and press release and are not independently verified in the sources. The company is early stage with a small disclosed funding base, a services-heavy model dependent on scarce expert responders, and plans to expand into more complex investigation types (ransomware, nation-state) it does not yet serve. Market context cited includes rising AI-enabled attacks, referencing Anthropic's documentation of a large-scale AI cyberattack executed without substantial human intervention.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 2
launches, deals, and filingsThe company stated it plans to expand its service lines in the coming year beyond business email compromise investigations to cover insider threat investigations, ransomware, and nation-state attacks.
Asymmetric Security announced a $4.2 million oversubscribed pre-seed round led by Susa Ventures, with Halcyon Ventures, Overlook Ventures and angel investors including Charlie Songhurst (Meta), Matt Clifford (Entrepreneur First) and Geoff Ralston (former Y Combinator president). Proceeds are earmarked for hiring across engineering and incident response teams.
$4.2M source ↗
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 8
primary sources listed
- Asymmetric Securityasymmetricsecurity.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Asymmetric Security do?
- AI-native digital forensics and incident response firm pairing frontier AI with expert analysts to speed cyber investigations.
- Who founded Asymmetric Security?
- Asymmetric Security was founded by Alexis Carlier, Zainab Ali Majid in 2025.
- Who are Asymmetric Security's investors?
- Asymmetric Security's investors include Entrepreneur First.
- Where is Asymmetric Security headquartered?
- Asymmetric Security is headquartered in London, GB.
