Tonic Security Emerges with $7M Seed Round to Combat Cyber Alert Fatigue
Deal News | Jul 28, 2025 | Hetz Ventures Management Ltd

Tonic Security, a Tel Aviv-based cybersecurity start-up, recently emerged from stealth mode by announcing a $7 million Seed round led by Hetz Ventures with participation from Vesey Ventures and several seasoned angel investors in the security domain. Tonic's platform aims to assist security teams by consolidating and interpreting large volumes of alerts and findings from existing security tools, an endeavor that addresses the prevalent challenge of prioritizing and managing vulnerabilities effectively. The company is helmed by CEO Sharon Isaaci, CPO David Warshavski, and CTO Greg Ainbinder, each of whom brings significant experience from entities like Sygnia and the Israeli elite intelligence unit 8200. Their product intends to complement existing security systems by refining alert prioritization based on contextual insights like business impact and system interrelations, reflecting a broader shift in the cybersecurity industry towards enhancing decision-making efficiency.
Sectors
- Cybersecurity
- Venture Capital
- Technology
Geography
- Israel – Tonic Security is a Tel Aviv-based startup and its founders have notable backgrounds in Israeli cybersecurity.
Industry
- Cybersecurity – The article focuses on Tonic Security, a company developing solutions to manage cybersecurity alerts.
- Venture Capital – The article discusses a $7M Seed round led by Hetz Ventures, a venture capital firm.
- Technology – Tonic Security's platform development falls under the technology sector, specifically in enhancing existing IT infrastructures.
Financials
- 7,000,000 – Seed round funding amount raised by Tonic Security.
Participants
| Name | Role | Type | Description |
|---|---|---|---|
| Tonic Security | Target company | Company | A Tel Aviv-based startup focused on improving cybersecurity alert management. |
| Hetz Ventures Management Ltd. | Lead investor | Company | A venture capital firm leading the $7M Seed funding round. |
| Vesey Ventures | Investor | Company | Participating venture capital firm in the funding round. |
| Sharon Isaaci | CEO | Person | CEO of Tonic Security, with a background at Sygnia and the IDF. |
| David Warshavski | CPO | Person | CPO of Tonic Security, formerly at Sygnia. |
| Greg Ainbinder | CTO | Person | CTO of Tonic Security, with experience in the Israeli elite intelligence unit 8200. |
| Angel investors | Investors | People | Experienced investors in the security industry. |