Guardio raises $40M at $1.1B, keeping dilution on a short leash

Why it matters

Guardio is testing whether AI scams can revive consumer cybersecurity as a paid category, using reported $150M ARR to raise growth capital without taking maximum dilution.

Guardio co-founders Amos Peled, Michael Vainshtein and Daniel Sirota raised $40 million at a $1.1 billion valuation, adding Assaf Rappaport (@AssafRappaport) to the cap table as they expand a browser-security product into a broader defense against AI-assisted scams.

Bloomberg reported the financing on Thursday, citing a Guardio statement. Existing investors ION Crossover Partners, Union Tech Ventures and Vintage Investment Partners participated. Ctech also named Cerca Partners and Emerge Ventures. Guardio says the round brings its total funding since its 2018 founding to $167 million.

Peled, Vainshtein and Sirota have taken an unusual route to unicorn status. The three worked together in Israeli cyber and intelligence roles, then founded Arpeely in 2017 to build machine-learning systems for digital advertising. Forbes Israel reported that Arpeely generated tens of millions of dollars in annual revenue and helped finance Guardio's first years.

That cash flow allowed the founders to operate Guardio for roughly three years without outside capital. They raised their first institutional round, $47 million led by Tiger Global, in December 2021. Guardio followed with an $80 million round led by ION Crossover Partners in November 2025.

A smaller round by design

The latest financing arrived less than 10 months after that $80 million raise, yet Peled told Ctech that Guardio deliberately limited the new round. Existing backers wanted to increase their holdings, he said, while Guardio did not require a larger cash injection to keep operating.

Peled said Guardio "does not burn cash to succeed," describing the $40 million as capital that will let Guardio move faster without imposing unnecessary dilution. It is a founder-friendly argument for taking venture money: set the amount around the operating plan rather than the largest check investors will write.

The terms still matter. The reporting does not specify whether the $1.1 billion valuation is pre-money or post-money, and no single lead investor was identified. Those details determine how much ownership the founders and existing shareholders gave up for the new capital.

Guardio's reported operating figures help explain why investors accepted a billion-dollar price. Peled told Ctech that Guardio has passed $150 million in annual recurring revenue, has more than 1 million paying customers and has grown revenue by over 100% annually for four consecutive years. Those figures come from Guardio and have not been independently audited in the disclosed reporting.

On the self-reported ARR figure, the valuation is roughly 7.3 times recurring revenue. Guardio's claim of more than 1 million paying customers implies annual revenue of less than $150 per paying customer, broadly consistent with public plans that list an individual subscription at $14.99 per month or $119.88 when billed annually. Guardio separately says it protects more than 1.5 million people, a broader metric that should not be treated as the paid subscriber count.

Selling security to people instead of security teams

Guardio is aimed at consumers and very small businesses, rather than primarily at enterprise security departments. It began with a browser extension that blocks phishing pages, malicious websites, unsafe redirects and harmful extensions. Guardio has since added mobile protection, data-leak alerts, account-security checks and coverage across multiple devices.

Peled's founding thesis was straightforward: consumers and small businesses use the same browser for banking, communication and work, yet most modern security products are sold to corporate security departments. Guardio could translate some of those enterprise controls into software that an individual could install and understand.

Generative AI has made that pitch easier to sell. Attackers can produce localized phishing pages, impersonation messages and convincing scam copy faster and at lower cost. Guardio argues that consumer protection must move beyond matching known malicious files and domains toward evaluating behavior and context across websites, messages, calls and devices.

Guardio's November 2025 financing announcement described extending personal cybersecurity as AI changes the nature of online threats. The new $40 million gives the founders additional room to execute that plan without resetting it around a much larger fundraise.

Guardio is pursuing the same AI-scam opportunity as established consumer-security vendors and newer mobile products. Its browser heritage provides a clear starting point: Guardio can intervene where users encounter phishing pages, malicious extensions and deceptive redirects, then extend that protection to the phone and identity layers around the browser.

Rappaport crosses the enterprise-consumer divide

Rappaport's investment gives Guardio an endorsement from the opposite end of cybersecurity. He co-founded Wiz as an enterprise cloud-security platform, and Google completed its acquisition of Wiz on March 11, 2026.

Peled told Ctech that he met Rappaport by chance and invited him to invest. Rappaport said Guardio's ability to understand context could become more valuable as AI makes online fraud increasingly personalized.

Rappaport's participation links Guardio's consumer-security pitch to the enterprise cloud-security market. RuntimeWire reported in May that email-security startup Ocean raised $28 million with backing from angels connected to Wiz, Armis and Axis Security.

For Guardio, the strategic value is clear. Peled, Vainshtein and Sirota have already demonstrated that a consumer subscription can support a substantial cybersecurity business. The new round gives them capital and a high-profile enterprise-security backer as they make a larger wager: AI-generated fraud can revive personal cybersecurity as a category people will again pay for directly.