Problem

Crosslayer Labs addresses a high-consequence web-infrastructure integrity problem: attackers can exploit weaknesses across DNS, BGP, TLS certificates, JavaScript, and third-party services to impersonate a company’s website or API. The company’s launch materials describe a scenario in which a user is redirected from a legitimate site such as Brex to an attacker-controlled copy while the browser’s security indicator still appears valid, potentially allowing the attacker to drain company funds. The principal use cases are therefore organizations whose websites and APIs are mission-critical and whose impersonation could create immediate financial, fraud, customer-trust, and regulatory damage, including crypto exchanges, fintech companies, banks, healthcare providers, and tax portals.

Product / Service

Crosslayer Labs offers an outside-in security monitoring platform and service for web infrastructure. It discovers and continuously monitors a customer’s Internet dependencies across the network stack, including DNS, BGP, TLS certificates, and JavaScript, then correlates signals across those layers to identify attack patterns and website or API hijacking. Its alerts are intended to be actionable, with root-cause analysis and remediation recommendations, while the company describes ongoing monitoring as supporting rapid response and mitigation. The public terms indicate a subscription-oriented security-services model, although no public pricing is shown.

Market

The company competes at the intersection of external attack surface management, digital risk and brand protection, and specialized website/API impersonation detection. Adjacent or overlapping competitors include Cloudflare for BGP and DNS monitoring; Palo Alto Networks and CrowdStrike for broader external attack surface management; and specialist Internet-asset discovery vendors such as Censys, Netlas, and SecurityTrails. In brand and impersonation monitoring, larger alternatives include ZeroFox, Recorded Future, Mandiant, Fortra PhishLabs, Bolster, Doppel, and Red Points. Crosslayer’s differentiation is its emphasis on correlating signals across multiple Internet-infrastructure layers rather than monitoring only domains or brands.

Crosslayer Labs was founded in 2025, joined Y Combinator’s Winter 2026 batch, and is listed as active with a three-person team. Tracxn reports $500,000 of total funding over one seed round, and the company’s site identifies Y Combinator, AE Investments, and Long Journey as backers. However, the available public evidence contains no named customers or revenue metrics and no public pricing or live demo, so the company appears to be an early-stage, traction-unproven entrant rather than one with demonstrated commercial scale; the founding team’s MPIC technology, which reportedly protects hundreds of millions of websites, is technical pedigree and ecosystem validation, not evidence of Crosslayer Labs’ own customer traction.