Aladdin Knowledge Systems Ltd. was a company that produced software for digital rights management and Internet security.

Aladdin Knowledge Systems was founded in 1985 by Jacob (Yanki) Margalit, when he was 23 years old; he was soon joined by his brother Danny Margalit, who took the responsibility for product development at the age of 18, while at the same time completing a Mathematics and Computer Science degree at Tel Aviv University.

In its early years the company developed two product lines, an artificial intelligence package (which was dropped early on) and a hardware product to prevent unauthorized software copying, similar to digital rights management (DRM).

In March 2009, Vector Capital acquired Aladdin and officially merged it with SafeNet.

In the late 1990s the company started diversifying and began offering Internet security and network security products, offering two product lines: eToken, portable device for two-factor authentication, pasdigital identity management, mainly deployed as a USB token.