Jscrambler
Jscrambler provides client-side security software that protects code and data in web browsers.
- Based in
- Porto, Portugal
- Founded
- 2010
- Ownership
- Private
About Jscrambler
Jscrambler sells a client-side security platform that runs inside the browser. It protects application logic, third-party scripts and sensitive data during live user sessions, rather than stopping at the network edge. The platform enforces policy at runtime and produces audit trails for compliance teams. The company serves large enterprises in sectors such as retail, financial services, healthcare, gaming, travel, media and identity verification. Its products cover code obfuscation and integrity checks, webpage and iframe monitoring, and governance of how scripts access data. It also offers fraud and abuse prevention, threat detection and compliance enforcement. Jscrambler works by observing script behaviour in real time and applying least-privilege restrictions. It integrates with security, identity, payments, privacy and DevOps tools so policies can be enforced in the browser. The text cites billions of protected sessions and millions of blocked data access attempts.
Products
- Code IntegrityProtects proprietary JavaScript with obfuscation, runtime integrity checks and pipeline integration.
- Webpage IntegrityInventories third-party scripts and applies access controls and behavioural defence on web pages.
- Iframe IntegrityGuards iframes against overlay, hijacking and formjacking attacks on payment pages.
Ownership and deals
- Raised $5.2mInvestor Iberis CapitalReport on the Jscrambler funding round of February 2025 (opens in a new tab)
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.