Prompt Security
Platform for AI Security
Startup Acquired Cyber Security Est. 2023
Total Raised
$23M
Acquired
Last Round
$18M
3 rounds
Investors
7
7 public
Team
5
51-200 employees
Confidence
82/100
News
9
articles
About
Prompt Security is a comprehensive platform for securing enterprise AI. It prevents Shadow AI and data exposure risks from third-party tools and copilots, protects homegrown AI apps from threats like prompt injections, jailbreaks, and toxic outputs, and manages the sprawl of AI agents. By inspecting every prompt and response, it provides full visibility, enforces policy, and ensures governance across all AI interactions in the organization.
Classification
Sector
Cyber SecurityApplication & Website Security
Core Technology
Artificial IntelligenceGenerative AI
Target Customer
Enterprise & Professional ServicesEnterprisesSMBs & SMEs
Business Model
B2B
Tags
cyber-securityartificial-intelligencerisk-assesments
Funding & Events
Oct 2023
Seed $5M
Hetz Ventures (Lead), Cyber Future Foundation, Four Rivers Group
Nov 2024
A Round $18M
Jump Capital (Lead), F5 Networks, Okta Ventures, Hetz Ventures
Dec 2023
SAFE Undisclosed
CyberFuture
Aug 2025
Exit $275M
News (9)
Aug 29, 2025 · www.calcalistech.com
growth-positive
Earnings beat expectations while $250 million Prompt deal underscores SentinelOne’s push to sharpen its AI capabilities. 
AcquisitionCustomers
Aug 4, 2025 · www.calcalistech.com
growth-positive
SentinelOne announces Prompt Security acquisition, expands into GenAI security | CTech
Acquisition
Jul 22, 2025 · www.calcalistech.com
growth-positive
Prompt Security, Lasso, Aim, Pillar, and Noma are all tipped as the next targets in Israel’s red-hot AI-cyber M&A race.
AcquisitionInvestment
Jan 9, 2025 · www.calcalistech.com
growth-positive
Lasman served as VP of Engineering at BigID in his most recent role and prior to that worked for over 15 years at Check Point.
InvestmentCustomersExpandManagement Changes
Nov 20, 2024 · www.calcalistech.com
growth-positive
Prompt Security raises $18 million Series A to protect enterprises from GenAI risks | CTech
InvestmentCustomersExpand
Jul 11, 2024 · www.prnewswire.com
growth-positive
Prompt Security Launches First GenAI Security Solution for MSSPs and Unveils new MSSP partnerships
PartnersExpand
Jan 25, 2024 · en.globes.co.il
growth-positive
Despite reserve duty, startup Prompt Security raises $5m
InvestmentCustomers
Jan 24, 2024 · techcrunch.com
growth-positive
Prompt Security wants to make GenAI safe for the enterprise | TechCrunch
Investment
Jan 24, 2024 · www.darkreading.com
growth-positive
Prompt Security Launches With AI Protection for the Enterprise
Investment
Details
Product Stage
Released
Employees
51-200
Exact Count
54
Founded
2023
Registrar
516861747
Locations
Tel Aviv-Yafo, Israel
New York, NY, USA
Links
Website
LinkedIn
Twitter
Admin
Last Update
Sep 24, 2025
Verified by
Yanina Wainscheinker
Claimed
Yes
Missing
sector, markets, not claimed
Team (5)
Itamar Golan
Co-founder & CEO
Founder
Lior Drihem
Co-founder & CTO
Founder
Vitaly Neyman
Co-founder & Chief Architect
Founder
Yael Macias
Yael Macias
Internal
Created by
Jenny Sotnik-Talisman (jenny.sotnik@sncentral.org)
Created
2024-01-17T00:00:00.000Z
Status
Acquired by SentinelOne on Aug, 2025