From teen hacker to Iron Dome researcher, this founder raised $28M to fight AI phishing
Shay Shwartz, a former hacker turned cybersecurity expert, has launched a startup called Ocean to combat AI-driven phishing attacks. The company recently raised $28 million in funding, led by Lightspeed Venture Partners, to enhance its email security platform. Ocean aims to provide advanced protection by analyzing the context of emails to detect fraud and impersonation attempts.
- ▪Shay Shwartz was previously involved in hacking before shifting his focus to cybersecurity.
- ▪Ocean, the startup he founded, has emerged from stealth mode with $28 million in funding.
- ▪The company is already reviewing billions of emails each month for notable clients like Kayak and Headspace.
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| Original publisher | Startups | TechCrunch |
| Canonical URL | https://techcrunch.com/2026/05/19/from-teen-hacker-to-iron-dome-researcher-this-founder-raised-28m-to-fight-ai-phishing/ |
| Publication time | Tue, 19 May 2026 21:08:51 +0000 |
| Retrieval time | 2026-05-19T21:09:38.321Z |
| Last seen | 2026-05-20T05:53:02.080Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | xnXLKqlR3qxP |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
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| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Shay Shwartz knows a lot about email phishing attacks. As a teenager, he made money as a hacker, but after getting caught at age 16, he realized he could use his cyber talents to prevent attacks rather than launch them. He went on to spend about a decade in top-tier cybersecurity roles, leading major projects for Israel’s elite defense and intelligence units, including work connected to the Iron Dome project, before joining Axis, the startup later acquired by HPE. All along, he had been itching to launch his own startup, and two years ago, he finally took the plunge. His startup Ocean, an agentic email security platform built to fight AI-powered attacks, just emerged from stealth mode with $28 million in total funding.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Startups | TechCrunch.
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