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AI security startup Onyx raises $113 million Series B at $640 million valuation

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Cybersecurity

20 stories about Cybersecurity

אפליקציית קלאוד קלוד

After OpenAI, Anthropic reveals AI hacking incidents linked to Israeli startup Irregular

31.07.26|Omer Kabir, Meir Orbach

Claude models gained unauthorized access to three organizations after a testing environment was inadvertently connected to the public internet, prompting Anthropic to tighten security across its AI evaluation pipeline.

Aner Mazur Hila Zigman and Shai Morag

Blue-and-white Black Hat: How Israel came to dominate cyber's biggest conference

30.07.26|Amy Shapiro, Elihay Vidal

Israeli founders, investors and security executives descend on Las Vegas each year, using Black Hat to launch products, court customers and shape the industry's AI-driven future.

נדב צפריר מנכ"ל צ'ק פוינט

“We are prepared to be very aggressive”: Check Point signals appetite for a major cyber acquisition

30.07.26|Sophie Shulman

CEO Nadav Tzafrir says the company is constantly evaluating targets as it attempts to close the gap with faster-growing rivals Palo Alto Networks and CrowdStrike.

מייסדי Bloom Security מימין אופיר בלסיאנו , איתי קרן ו איתי פרישמן

Palo Alto Networks veterans launch Bloom Security with $20 million bet on the AI endpoint

30.07.26|Meir Orbach

The Israeli startup argues that traditional cybersecurity tools were built for malware, not for a world where employees and AI systems install software that can access sensitive company data.

בניין צ'ק פוינט לוגו חדש

Check Point’s turnaround remains stuck as revenue stagnates and cash flow plunges

30.07.26|Sophie Shulman

The Israeli cybersecurity giant delivered another weak quarter, raising questions over how quickly CEO Nadav Zafrir can revive growth after taking the helm.

Onyx Security founders

AI security startup Onyx raises $113 million Series B at $640 million valuation

30.07.26|Meir Orbach

Just four months after emerging from stealth, the Israeli startup is betting that securing AI agents will become one of cybersecurity's biggest markets.

סם אלטמן מייסד OpenAI ומנכ"ל צ'אט ג'יפיטי ChatGPT

OpenAI’s rogue AI agent breached second company during hacking spree

29.07.26|Reuters

The agent compromised a Modal Labs customer while targeting Hugging Face, expanding the scope of an incident that has intensified fears over autonomous AI systems.

Oasis founders set for $200 million-plus payday in $1 billion Cyera acquisition

29.07.26|Meir Orbach

The Cyera acquisition comes less than four years after Danny Brickman and Amit Zimerman launched a company focused on securing machine identities.

צוות הפאונדרים של Act Security מימין עילי פלח יונתן לנגר איתי קירשנבאום ו סטפן גולדברג

After Medigate's $400 million exit, founders launch $60 million cyber startup from stealth

Seven months after Calcalist first revealed its funding, Act Security officially launches with a cloud security platform designed to eliminate the access pathways that AI-powered attacks increasingly exploit.

מימין גיא פרגל CTO אסף וינר מנכ"ל ו אורן סבן CPO – מייסדי Mate Security

Former Wiz and Microsoft veterans raise $35 million Series A to build the “operating system” for AI cybersecurity agents

28.07.26|Meir Orbach

Mate Security says traditional security operations were not designed for AI-scale attacks. The startup is betting that trusted autonomous agents, powered by an “organizational brain,” will reshape how companies detect and respond to threats.

Cyber unicorn Cyera acquires Oasis Security in $1 billion deal

28.07.26|Meir Orbach

The acquisition of the Israeli startup, founded to manage access for non-human identities, marks Cyera’s latest move to build a broader AI-powered cybersecurity platform.

Former Meta Networks founders raise $30 million Series A to secure the AI workforce

28.07.26|Meir Orbach

Hush Security, led by the team behind the Zero Trust startup acquired by Proofpoint, is building identity infrastructure for AI agents and other non-human identities.

מיקרוסופט קמפוס הרצליה

Microsoft’s Israeli cyber team helps build the company’s next-generation AI defense system

27.07.26|Omer Kabir

Perception combines AI models and autonomous agents to detect and remediate vulnerabilities as Microsoft prepares for a future of faster, AI-powered attacks.

Cato Networks tops $415 million in ARR, still planning IPO

27.07.26|Sophie Shulman

The Israeli cybersecurity company says growth accelerated in the second quarter, with major enterprise deals signed, even as it delays office expansion and keeps investors waiting for a public offering.

מייסדי Way Security מימין יוסי ברישב ו יונתן רוזנברג

Way Security raises $20 million Seed to tackle enterprise identity headaches

27.07.26|Meir Orbach

The Israeli startup aims to automate the costly implementation work behind identity and access management systems, a market where integration often costs several times more than the software itself.

עמירם שחר (מימין) ועומר גרוסמן

CyberArk veteran and former IDF cyber chief joins unicorn Upwind

26.07.26|Meir Orbach

Omer Grossman joins the cloud security startup as Chief Business Officer after leading CyberArk’s trust division and commanding the IDF Cyber Defense Center.

גל נגלי חוקר בכיר ב וויז Wiz

Wiz’s AI hacker hunter: “I used to hope I found a vulnerability overnight. Today AI tells me it hacked the organization”

26.07.26|Meir Orbach

Former bug bounty researcher Gal Nagli describes how AI is replacing manual security research with automated attacks and defenses.

הבית הלבן וושינגטון DC

OpenAI incident fuels calls for a government ‘kill switch’ for AI models

25.07.26|Reuters, CTech

A security test in which an AI agent escaped containment and compromised a startup’s infrastructure has drawn attention from the White House and renewed debate over AI oversight.

AI defenders are fighting under rules their attackers don’t have

24.07.26|Eylam Milner and Mor Weinberger

One of the first major AI-versus-AI incidents showed how safeguards designed to prevent misuse can leave authorized defenders constrained during a live attack.

עובדי חברת הסייבר GLOW

Why investors poured $340 million into three Israeli cyber startups before anyone knew they existed

Oak, Neo and Glow emerged from stealth within days of each other, reflecting a broader shift toward AI-native enterprise security.