Tonic Security raises $7M to Slash Cyber Risk with Agentic Exposure Management Platform   

Emerging from stealth, Tonic expedites prioritization and remediation of vulnerabilities and threats with actionable context

TEL AVIV, Israel – July 28, 2025 – Tonic Security, a cybersecurity startup helping teams cut through the overwhelming noise and complexity, launched from stealth today with $7 million in seed funding. The company’s AI-powered platform aligns and interprets data from fragmented IT and security tools, adding context to every finding, enabling security teams to prioritize and remediate vulnerabilities faster.

Hetz Ventures led the seed round with participation from Vesey Ventures and prominent angel investors in the cybersecurity industry.

Led by seasoned cybersecurity experts and operators, Sharon Isaaci (CEO), David Warshavski (CPO) and Greg Ainbinder (CTO), Tonic solves a major challenge every security team faces as the attack surface rapidly expands: they are flooded with endless findings and alerts from multiple tools and assessments and can’t proactively fix the exposures that matter to their organizations in time.

“Before starting Tonic, I was increasingly frustrated with the ‘writing on the wall’,” said Sharon Isaaci. “As a CISO, incident responder and trusted advisor to many Fortune 500 companies, I witnessed first-hand how most security breaches could’ve been prevented in hindsight. They were often the direct result of a known exposure that was mis-prioritized and then exploited by the threat actors before being fixed by the defenders. No one was outpatching the adversaries!”

“This realization is what led us to build Tonic,” explains Isaaci. “Tonic is addressing the root cause of the problem, by introducing the first context-driven Exposure Management Platform that eliminates the cacophony caused by dozens of disparate tools, and provides the clarity, focus and business context security teams need to proactively protect their organizations.”

Powered by its own domain-specific AI agents and proprietary Data Fabric, Tonic harmonizes and contextualizes data from threat intelligence and unstructured organizational knowledge (like tickets, documents, emails and messages). Armed       with this intel, users can quickly understand the potential business impact, operational dependencies, accountability, likelihood of exploitation, and remediation feasibility. With meaningful and actionable context, security teams can then smartly prioritize findings, dramatically reduce the noise and take the right action to remediate and mitigate exposures in no time.

Tonic’s customers are already seeing the impact:

• 50% decrease in Mean Time to Remediate (MTTR) of business-critical exposures.
• 20% drop in time spent per employee per week contextualizing findings and triaging alerts.
• 90% reduction in exposures requiring remediation.

“Tonic is a game-changer,” said Mark Fournier, CIO and CISO of the United States Senate Federal Credit Union. “It used to take days to identify an exposed asset and understand the potential risk to the business if exploited. With Tonic it takes minutes.”

Leading global enterprises, including Fortune 500 companies, trust Tonic to:

• Reduce the exposure window for remediating vulnerabilities and triaging alerts.
• Stop wasting time on false positives, reduce tool pivots, and enhance collaboration between security, IT and business stakeholders.
• Enhance efficiency, while minimizing dependencies on homegrown systems, manual collection processes and information outside of the security teams.
• Move beyond technical visibility and generic security scores to attain a business-led perspective of their security posture.

“Security teams are drowning in data but starving for context,” said Pavel Livshitz, General Partner at Hetz Ventures. “What stood out with Tonic is their ability to surface what actually matters to the business by applying AI in a pragmatic and operational way. Tonic helps organizations move from reactive firefighting to intelligent preemption. That’s the kind of innovative thinking we back.”

Prior to founding Tonic Security, Sharon Isaaci was an Executive at Sygnia, a top-tier incident response and cybersecurity consulting firm, and previously CISO and Senior Intelligence Officer at the IDF. David Warshavski, also an Executive at Sygnia, led its Red Team and Enterprise Security department, working closely with Fortune 500 CISOs in building their resilience. Greg Ainbinder held senior positions at the Israeli elite intelligence 8200 unit, founding its AI department and Secure Cloud Center.

About Tonic Security

Tonic is reshaping Exposure and Vulnerability Management by providing the context security teams need to accelerate prioritization and remediation of vulnerabilities and threats. Powered by Agentic AI and a security Data Fabric, Tonic extracts meaningful and actionable context from unstructured organizational knowledge and threat intelligence, empowering security teams with superior visibility, dramatic reduction in false positives, and a sharp focus on findings that matter. Leading organizations, including Fortune 500 companies, rely on Tonic to slash remediation time and reduce risk to key business processes. To learn more, visit www.tonicsecurity.com.